202157207 has 16 divisors (see below), whose sum is σ = 246140160. Its totient is φ = 162171072.

The previous prime is 202157171. The next prime is 202157227. The reversal of 202157207 is 702751202.

It is not a de Polignac number, because 202157207 - 2¹² = 202153111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202157227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1883 + ... + 20195.

It is an arithmetic number, because the mean of its divisors is an integer number (15383760).

Almost surely, 2^202157207 is an apocalyptic number.

202157207 is a deficient number, since it is larger than the sum of its proper divisors (43982953).

202157207 is a wasteful number, since it uses less digits than its factorization.

202157207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18422.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 202157207 is about 14218.1998508953. The cubic root of 202157207 is about 586.8986036622.

The spelling of 202157207 in words is "two hundred two million, one hundred fifty-seven thousand, two hundred seven".