156480431 has 4 divisors (see below), whose sum is σ = 163283952. Its totient is φ = 149676912.

The previous prime is 156480421. The next prime is 156480439. The reversal of 156480431 is 134084651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134084651 = 2131 ⋅62921.

It is a cyclic number.

It is not a de Polignac number, because 156480431 - 2⁶ = 156480367 is a prime.

It is a super-2 number, since 2×156480431² = 48972250571891522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156480439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3401726 + ... + 3401771.

It is an arithmetic number, because the mean of its divisors is an integer number (40820988).

Almost surely, 2^156480431 is an apocalyptic number.

156480431 is a deficient number, since it is larger than the sum of its proper divisors (6803521).

156480431 is an equidigital number, since it uses as much as digits as its factorization.

156480431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6803520.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 156480431 is about 12509.2138442030. The cubic root of 156480431 is about 538.8733150107.

The spelling of 156480431 in words is "one hundred fifty-six million, four hundred eighty thousand, four hundred thirty-one".