156472047 has 8 divisors (see below), whose sum is σ = 231810480. Its totient is φ = 104314680.

The previous prime is 156472021. The next prime is 156472051. The reversal of 156472047 is 740274651.

156472047 is a `hidden beast` number, since 1 + 5 + 647 + 2 + 0 + 4 + 7 = 666.

It is not a de Polignac number, because 156472047 - 2⁷ = 156471919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156472247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2897604 + ... + 2897657.

It is an arithmetic number, because the mean of its divisors is an integer number (28976310).

Almost surely, 2^156472047 is an apocalyptic number.

156472047 is a deficient number, since it is larger than the sum of its proper divisors (75338433).

156472047 is an equidigital number, since it uses as much as digits as its factorization.

156472047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795270 (or 5795264 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 156472047 is about 12508.8787267285. The cubic root of 156472047 is about 538.8636908156.

The spelling of 156472047 in words is "one hundred fifty-six million, four hundred seventy-two thousand, forty-seven".