156452947 has 8 divisors (see below), whose sum is σ = 178937600. Its totient is φ = 134001864.

The previous prime is 156452927. The next prime is 156452987. The reversal of 156452947 is 749254651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 9-Lehmer number, since φ(156452947) divides (156452947-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 156452947 - 2¹⁹ = 155928659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156452927) 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, 2554 + ... + 17872.

It is an arithmetic number, because the mean of its divisors is an integer number (22367200).

Almost surely, 2^156452947 is an apocalyptic number.

156452947 is the 10213-rd pentagonal number.

156452947 is a deficient number, since it is larger than the sum of its proper divisors (22484653).

156452947 is a wasteful number, since it uses less digits than its factorization.

156452947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16785.

The product of its digits is 302400, while the sum is 43.

The square root of 156452947 is about 12508.1152457115. The cubic root of 156452947 is about 538.8417641830.

The spelling of 156452947 in words is "one hundred fifty-six million, four hundred fifty-two thousand, nine hundred forty-seven".