155161456 has 20 divisors (see below), whose sum is σ = 301703904. Its totient is φ = 77302400.

The previous prime is 155161439. The next prime is 155161459. The reversal of 155161456 is 654161551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155161459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12760 + ... + 21751.

Almost surely, 2^155161456 is an apocalyptic number.

155161456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155161456 is a deficient number, since it is larger than the sum of its proper divisors (146542448).

155161456 is a wasteful number, since it uses less digits than its factorization.

155161456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34800 (or 34794 counting only the distinct ones).

The product of its digits is 18000, while the sum is 34.

The square root of 155161456 is about 12456.3821392891. The cubic root of 155161456 is about 537.3549849281.

The spelling of 155161456 in words is "one hundred fifty-five million, one hundred sixty-one thousand, four hundred fifty-six".