1156214136 has 64 divisors (see below), whose sum is σ = 3603790080. Its totient is φ = 300314880.

The previous prime is 1156214131. The next prime is 1156214167. The reversal of 1156214136 is 6314126511.

It is a happy number.

It is a super-2 number, since 2×1156214136² = 2673662256572452992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156214131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310981 + ... + 314676.

It is an arithmetic number, because the mean of its divisors is an integer number (56309220).

Almost surely, 2^1156214136 is an apocalyptic number.

It is an amenable number.

1156214136 is an abundant number, since it is smaller than the sum of its proper divisors (2447575944).

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

1156214136 is a wasteful number, since it uses less digits than its factorization.

1156214136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625684 (or 625680 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1156214136 is about 34003.1489130051. The cubic root of 1156214136 is about 1049.5732615101.

The spelling of 1156214136 in words is "one billion, one hundred fifty-six million, two hundred fourteen thousand, one hundred thirty-six".