1157041072 has 60 divisors (see below), whose sum is σ = 2533125816. Its totient is φ = 507727360.

The previous prime is 1157041069. The next prime is 1157041073. The reversal of 1157041072 is 2701407511.

It is a self number, because there is not a number n which added to its sum of digits gives 1157041072.

It is not an unprimeable number, because it can be changed into a prime (1157041073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144108 + ... + 151924.

Almost surely, 2^1157041072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1157041072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1266562908).

1157041072 is an abundant number, since it is smaller than the sum of its proper divisors (1376084744).

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

1157041072 is a wasteful number, since it uses less digits than its factorization.

1157041072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894 (or 7859 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 1157041072 is about 34015.3064369557. The cubic root of 1157041072 is about 1049.8234236708.

Adding to 1157041072 its reverse (2701407511), we get a palindrome (3858448583).

The spelling of 1157041072 in words is "one billion, one hundred fifty-seven million, forty-one thousand, seventy-two".