195151790 has 16 divisors (see below), whose sum is σ = 352941840. Its totient is φ = 77689920.

The previous prime is 195151787. The next prime is 195151799. The reversal of 195151790 is 97151591.

It is a super-2 number, since 2×195151790² = 76168442280408200, which contains 22 as substring.

It is a cake number, because a cake can be divided into 195151790 parts by 1054 planar cuts.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195151799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44135 + ... + 48354.

It is an arithmetic number, because the mean of its divisors is an integer number (22058865).

Almost surely, 2^195151790 is an apocalyptic number.

195151790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195151790 is a deficient number, since it is larger than the sum of its proper divisors (157790050).

195151790 is a wasteful number, since it uses less digits than its factorization.

195151790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92707.

The product of its (nonzero) digits is 14175, while the sum is 38.

The square root of 195151790 is about 13969.6739403610. The cubic root of 195151790 is about 580.0394245892.

The spelling of 195151790 in words is "one hundred ninety-five million, one hundred fifty-one thousand, seven hundred ninety".