1156423432 has 16 divisors (see below), whose sum is σ = 2170986300. Its totient is φ = 577493760.

The previous prime is 1156423403. The next prime is 1156423451. The reversal of 1156423432 is 2343246511.

It can be written as a sum of positive squares in 2 ways, for example, as 955180836 + 201242596 = 30906^2 + 14186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1156423394 and 1156423403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82869 + ... + 95812.

Almost surely, 2^1156423432 is an apocalyptic number.

It is an amenable number.

1156423432 is a deficient number, since it is larger than the sum of its proper divisors (1014562868).

1156423432 is a wasteful number, since it uses less digits than its factorization.

1156423432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179496 (or 179492 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 1156423432 is about 34006.2263710633. The cubic root of 1156423432 is about 1049.6365883700.

Adding to 1156423432 its reverse (2343246511), we get a palindrome (3499669943).

The spelling of 1156423432 in words is "one billion, one hundred fifty-six million, four hundred twenty-three thousand, four hundred thirty-two".