156423361 has 4 divisors (see below), whose sum is σ = 161817300. Its totient is φ = 151029424.

The previous prime is 156423347. The next prime is 156423367. The reversal of 156423361 is 163324651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55219761 + 101203600 = 7431^2 + 10060^2 .

It is a cyclic number.

It is not a de Polignac number, because 156423361 - 2¹¹ = 156421313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156423367) 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, 2696926 + ... + 2696983.

It is an arithmetic number, because the mean of its divisors is an integer number (40454325).

Almost surely, 2^156423361 is an apocalyptic number.

It is an amenable number.

156423361 is a deficient number, since it is larger than the sum of its proper divisors (5393939).

156423361 is an equidigital number, since it uses as much as digits as its factorization.

156423361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393938.

The product of its digits is 12960, while the sum is 31.

The square root of 156423361 is about 12506.9325176080. The cubic root of 156423361 is about 538.8077961907.

The spelling of 156423361 in words is "one hundred fifty-six million, four hundred twenty-three thousand, three hundred sixty-one".