1157368212 has 144 divisors (see below), whose sum is σ = 3928159872. Its totient is φ = 277482240.

The previous prime is 1157368187. The next prime is 1157368237. The reversal of 1157368212 is 2128637511.

1157368212 is a `hidden beast` number, since 1 + 1 + 573 + 6 + 82 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1157368187) and next prime (1157368237).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19978 + ... + 52094.

It is an arithmetic number, because the mean of its divisors is an integer number (27278888).

Almost surely, 2^1157368212 is an apocalyptic number.

1157368212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1157368212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964079936).

1157368212 is an abundant number, since it is smaller than the sum of its proper divisors (2770791660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1157368212 is a wasteful number, since it uses less digits than its factorization.

1157368212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32158 (or 32153 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1157368212 is about 34020.1148146211. The cubic root of 1157368212 is about 1049.9223561634.

The spelling of 1157368212 in words is "one billion, one hundred fifty-seven million, three hundred sixty-eight thousand, two hundred twelve".