195157212 has 48 divisors (see below), whose sum is σ = 493934112. Its totient is φ = 59729920.

The previous prime is 195157201. The next prime is 195157223. The reversal of 195157212 is 212751591.

It is an interprime number because it is at equal distance from previous prime (195157201) and next prime (195157223).

It is a super-2 number, since 2×195157212² = 76172674791225888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3303 + ... + 20030.

It is an arithmetic number, because the mean of its divisors is an integer number (10290294).

Almost surely, 2^195157212 is an apocalyptic number.

195157212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

195157212 is an abundant number, since it is smaller than the sum of its proper divisors (298776900).

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

195157212 is a wasteful number, since it uses less digits than its factorization.

195157212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23398 (or 23396 counting only the distinct ones).

The product of its digits is 6300, while the sum is 33.

The square root of 195157212 is about 13969.8680022397. The cubic root of 195157212 is about 580.0447963815.

The spelling of 195157212 in words is "one hundred ninety-five million, one hundred fifty-seven thousand, two hundred twelve".