195132015 has 72 divisors (see below), whose sum is σ = 374625888. Its totient is φ = 93398400.

The previous prime is 195131983. The next prime is 195132029. The reversal of 195132015 is 510231591.

195132015 = T₄₇₄ + T₄₇₅ + ... + T₁₀₈₄.

It is not a de Polignac number, because 195132015 - 2⁵ = 195131983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195132015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1292190 + ... + 1292340.

Almost surely, 2^195132015 is an apocalyptic number.

195132015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

195132015 is a deficient number, since it is larger than the sum of its proper divisors (179493873).

195132015 is a wasteful number, since it uses less digits than its factorization.

195132015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 195132015 is about 13968.9661392674. The cubic root of 195132015 is about 580.0198318625.

It can be divided in two parts, 19513 and 2015, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 195132015 in words is "one hundred ninety-five million, one hundred thirty-two thousand, fifteen".