155195930 has 8 divisors (see below), whose sum is σ = 279352692. Its totient is φ = 62078368.

The previous prime is 155195917. The next prime is 155195959. The reversal of 155195930 is 39591551.

It can be written as a sum of positive squares in 2 ways, for example, as 154678969 + 516961 = 12437^2 + 719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7759787 + ... + 7759806.

Almost surely, 2^155195930 is an apocalyptic number.

155195930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155195930 is a deficient number, since it is larger than the sum of its proper divisors (124156762).

155195930 is a wasteful number, since it uses less digits than its factorization.

155195930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15519600.

The product of its (nonzero) digits is 30375, while the sum is 38.

The square root of 155195930 is about 12457.7658510666. The cubic root of 155195930 is about 537.3947787542.

The spelling of 155195930 in words is "one hundred fifty-five million, one hundred ninety-five thousand, nine hundred thirty".