156230347281 has 4 divisors (see below), whose sum is σ = 208307129712. Its totient is φ = 104153564852.

The previous prime is 156230347279. The next prime is 156230347337. The reversal of 156230347281 is 182743032651.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 156230347281 - 2¹ = 156230347279 is a prime.

It is a super-2 number, since 2×156230347281² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156230347271) 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, 26038391211 + ... + 26038391216.

It is an arithmetic number, because the mean of its divisors is an integer number (52076782428).

Almost surely, 2^156230347281 is an apocalyptic number.

It is an amenable number.

156230347281 is a deficient number, since it is larger than the sum of its proper divisors (52076782431).

156230347281 is an equidigital number, since it uses as much as digits as its factorization.

156230347281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52076782430.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 156230347281 in words is "one hundred fifty-six billion, two hundred thirty million, three hundred forty-seven thousand, two hundred eighty-one".