155954481 has 8 divisors (see below), whose sum is σ = 220171104. Its totient is φ = 97853760.

The previous prime is 155954479. The next prime is 155954497. The reversal of 155954481 is 184459551.

155954481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 155954481 - 2¹ = 155954479 is a prime.

It is a super-2 number, since 2×155954481² = 48643600287958722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155954401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528915 + ... + 1529016.

It is an arithmetic number, because the mean of its divisors is an integer number (27521388).

Almost surely, 2^155954481 is an apocalyptic number.

It is an amenable number.

155954481 is a deficient number, since it is larger than the sum of its proper divisors (64216623).

155954481 is a wasteful number, since it uses less digits than its factorization.

155954481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057951.

The product of its digits is 144000, while the sum is 42.

The square root of 155954481 is about 12488.1736454936. The cubic root of 155954481 is about 538.2688974711.

The spelling of 155954481 in words is "one hundred fifty-five million, nine hundred fifty-four thousand, four hundred eighty-one".