1151552511 has 32 divisors (see below), whose sum is σ = 1823316480. Its totient is φ = 715759488.

The previous prime is 1151552509. The next prime is 1151552537. The reversal of 1151552511 is 1152551511.

It is a happy number.

1151552511 is a `hidden beast` number, since 11 + 51 + 552 + 51 + 1 = 666.

It is not a de Polignac number, because 1151552511 - 2¹ = 1151552509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151552581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37390 + ... + 60836.

It is an arithmetic number, because the mean of its divisors is an integer number (56978640).

Almost surely, 2^1151552511 is an apocalyptic number.

1151552511 is a deficient number, since it is larger than the sum of its proper divisors (671763969).

1151552511 is a wasteful number, since it uses less digits than its factorization.

1151552511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23580 (or 23574 counting only the distinct ones).

The product of its digits is 1250, while the sum is 27.

The square root of 1151552511 is about 33934.5327211087. The cubic root of 1151552511 is about 1048.1608048099.

The spelling of 1151552511 in words is "one billion, one hundred fifty-one million, five hundred fifty-two thousand, five hundred eleven".