156422093 has 6 divisors (see below), whose sum is σ = 160332042. Its totient is φ = 152605280.

The previous prime is 156422087. The next prime is 156422099. The reversal of 156422093 is 390224651.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (156422087) and next prime (156422099).

It can be written as a sum of positive squares in 3 ways, for example, as 996004 + 155426089 = 998^2 + 12467^2 .

It is not a de Polignac number, because 156422093 - 2¹² = 156417997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156422099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44846 + ... + 48207.

It is an arithmetic number, because the mean of its divisors is an integer number (26722007).

Almost surely, 2^156422093 is an apocalyptic number.

It is an amenable number.

156422093 is a deficient number, since it is larger than the sum of its proper divisors (3909949).

156422093 is an frugal number, since it uses more digits than its factorization.

156422093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93135 (or 93094 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 156422093 is about 12506.8818256190. The cubic root of 156422093 is about 538.8063402911.

The spelling of 156422093 in words is "one hundred fifty-six million, four hundred twenty-two thousand, ninety-three".