155161461 has 32 divisors (see below), whose sum is σ = 261522688. Its totient is φ = 79626240.

The previous prime is 155161459. The next prime is 155161549. The reversal of 155161461 is 164161551.

It is not a de Polignac number, because 155161461 - 2¹ = 155161459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155161411) 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 31 ways as a sum of consecutive naturals, for example, 2421 + ... + 17781.

It is an arithmetic number, because the mean of its divisors is an integer number (8172584).

Almost surely, 2^155161461 is an apocalyptic number.

It is an amenable number.

155161461 is a deficient number, since it is larger than the sum of its proper divisors (106361227).

155161461 is a wasteful number, since it uses less digits than its factorization.

155161461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15421.

The product of its digits is 3600, while the sum is 30.

The square root of 155161461 is about 12456.3823399894. The cubic root of 155161461 is about 537.3549907001.

The spelling of 155161461 in words is "one hundred fifty-five million, one hundred sixty-one thousand, four hundred sixty-one".