155930351 has 4 divisors (see below), whose sum is σ = 157387752. Its totient is φ = 154472952.

The previous prime is 155930347. The next prime is 155930353. The reversal of 155930351 is 153039551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153039551 = 7 ⋅21862793.

It is a cyclic number.

It is not a de Polignac number, because 155930351 - 2² = 155930347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155930353) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 728540 + ... + 728753.

It is an arithmetic number, because the mean of its divisors is an integer number (39346938).

Almost surely, 2^155930351 is an apocalyptic number.

155930351 is a deficient number, since it is larger than the sum of its proper divisors (1457401).

155930351 is a wasteful number, since it uses less digits than its factorization.

155930351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457400.

The product of its (nonzero) digits is 10125, while the sum is 32.

The square root of 155930351 is about 12487.2074940717. The cubic root of 155930351 is about 538.2411348865.

The spelling of 155930351 in words is "one hundred fifty-five million, nine hundred thirty thousand, three hundred fifty-one".