1152015531 has 4 divisors (see below), whose sum is σ = 1536020712. Its totient is φ = 768010352.

The previous prime is 1152015511. The next prime is 1152015589. The reversal of 1152015531 is 1355102511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1152015531 - 2²¹ = 1149918379 is a prime.

It is a super-2 number, since 2×1152015531² = 2654279567330423922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1152015511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192002586 + ... + 192002591.

It is an arithmetic number, because the mean of its divisors is an integer number (384005178).

Almost surely, 2^1152015531 is an apocalyptic number.

1152015531 is a deficient number, since it is larger than the sum of its proper divisors (384005181).

1152015531 is an equidigital number, since it uses as much as digits as its factorization.

1152015531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384005180.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1152015531 is about 33941.3542894210. The cubic root of 1152015531 is about 1048.3012686270.

The spelling of 1152015531 in words is "one billion, one hundred fifty-two million, fifteen thousand, five hundred thirty-one".