156121206 has 12 divisors (see below), whose sum is σ = 312303636. Its totient is φ = 52030200.

The previous prime is 156121201. The next prime is 156121211. The reversal of 156121206 is 602121651.

156121206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (156121201) and next prime (156121211).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156121201) 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, 28056 + ... + 33156.

It is an arithmetic number, because the mean of its divisors is an integer number (26025303).

Almost surely, 2^156121206 is an apocalyptic number.

156121206 is an abundant number, since it is smaller than the sum of its proper divisors (156182430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156121206 is an frugal number, since it uses more digits than its factorization.

156121206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10207 (or 5106 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 156121206 is about 12494.8471779370. The cubic root of 156121206 is about 538.4606434219.

Multiplying 156121206 by its sum of digits (24), we get a square (3746908944 = 61212²).

Adding to 156121206 its reverse (602121651), we get a palindrome (758242857).

The spelling of 156121206 in words is "one hundred fifty-six million, one hundred twenty-one thousand, two hundred six".