155361042 has 24 divisors (see below), whose sum is σ = 342323280. Its totient is φ = 50908920.

The previous prime is 155361023. The next prime is 155361049. The reversal of 155361042 is 240163551.

155361042 is a `hidden beast` number, since 1 + 5 + 5 + 3 + 610 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 155360997 and 155361015.

It is not an unprimeable number, because it can be changed into a prime (155361049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72084 + ... + 74207.

It is an arithmetic number, because the mean of its divisors is an integer number (14263470).

Almost surely, 2^155361042 is an apocalyptic number.

155361042 is an abundant number, since it is smaller than the sum of its proper divisors (186962238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155361042 is a wasteful number, since it uses less digits than its factorization.

155361042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146358 (or 146355 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 155361042 is about 12464.3909598504. The cubic root of 155361042 is about 537.5852882148.

The spelling of 155361042 in words is "one hundred fifty-five million, three hundred sixty-one thousand, forty-two".