157205106 has 12 divisors (see below), whose sum is σ = 340611102. Its totient is φ = 52401696.

The previous prime is 157205021. The next prime is 157205117. The reversal of 157205106 is 601502751.

157205106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 122877225 + 34327881 = 11085^2 + 5859^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 157205106.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4366791 + ... + 4366826.

Almost surely, 2^157205106 is an apocalyptic number.

157205106 is an abundant number, since it is smaller than the sum of its proper divisors (183405996).

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

157205106 is a wasteful number, since it uses less digits than its factorization.

157205106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8733625 (or 8733622 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 157205106 is about 12538.1460351999. The cubic root of 157205106 is about 539.7038911564.

Adding to 157205106 its reverse (601502751), we get a palindrome (758707857).

The spelling of 157205106 in words is "one hundred fifty-seven million, two hundred five thousand, one hundred six".