1155145232 has 20 divisors (see below), whose sum is σ = 2238762960. Its totient is φ = 577399968.

The previous prime is 1155145213. The next prime is 1155145237. The reversal of 1155145232 is 2325415511.

It is a super-3 number, since 3×1155145232³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1155145195 and 1155145204.

It is not an unprimeable number, because it can be changed into a prime (1155145237) 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, 57503 + ... + 74945.

It is an arithmetic number, because the mean of its divisors is an integer number (111938148).

Almost surely, 2^1155145232 is an apocalyptic number.

It is an amenable number.

1155145232 is a deficient number, since it is larger than the sum of its proper divisors (1083617728).

1155145232 is a wasteful number, since it uses less digits than its factorization.

1155145232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21590 (or 21584 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 1155145232 is about 33987.4275578485. The cubic root of 1155145232 is about 1049.2497231259.

The spelling of 1155145232 in words is "one billion, one hundred fifty-five million, one hundred forty-five thousand, two hundred thirty-two".