155918042 has 8 divisors (see below), whose sum is σ = 267288096. Its totient is φ = 66822012.

The previous prime is 155918041. The next prime is 155918117. The reversal of 155918042 is 240819551.

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

It is a super-2 number, since 2×155918042² = 48620871642227528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155917993 and 155918011.

It is not an unprimeable number, because it can be changed into a prime (155918041) 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, 5568488 + ... + 5568515.

It is an arithmetic number, because the mean of its divisors is an integer number (33411012).

Almost surely, 2^155918042 is an apocalyptic number.

155918042 is a deficient number, since it is larger than the sum of its proper divisors (111370054).

155918042 is a wasteful number, since it uses less digits than its factorization.

155918042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11137012.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 155918042 is about 12486.7146199471. The cubic root of 155918042 is about 538.2269717587.

The spelling of 155918042 in words is "one hundred fifty-five million, nine hundred eighteen thousand, forty-two".