155955943 has 16 divisors (see below), whose sum is σ = 194001696. Its totient is φ = 123171840.

The previous prime is 155955937. The next prime is 155955953. The reversal of 155955943 is 349559551.

It is not a de Polignac number, because 155955943 - 2²¹ = 153858791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155955893 and 155955902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155955913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29646 + ... + 34507.

It is an arithmetic number, because the mean of its divisors is an integer number (12125106).

Almost surely, 2^155955943 is an apocalyptic number.

155955943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

155955943 is a deficient number, since it is larger than the sum of its proper divisors (38045753).

155955943 is a wasteful number, since it uses less digits than its factorization.

155955943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64194.

The product of its digits is 607500, while the sum is 46.

The square root of 155955943 is about 12488.2321807372. The cubic root of 155955943 is about 538.2705794719.

The spelling of 155955943 in words is "one hundred fifty-five million, nine hundred fifty-five thousand, nine hundred forty-three".