155961350 has 24 divisors (see below), whose sum is σ = 290693448. Its totient is φ = 62254400.

The previous prime is 155961347. The next prime is 155961359. The reversal of 155961350 is 53169551.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155961350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155961359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23057 + ... + 29043.

It is an arithmetic number, because the mean of its divisors is an integer number (12112227).

Almost surely, 2^155961350 is an apocalyptic number.

155961350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155961350 is a deficient number, since it is larger than the sum of its proper divisors (134732098).

155961350 is a wasteful number, since it uses less digits than its factorization.

155961350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520 (or 6515 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 155961350 is about 12488.4486626642. The cubic root of 155961350 is about 538.2768000223.

The spelling of 155961350 in words is "one hundred fifty-five million, nine hundred sixty-one thousand, three hundred fifty".