155406942 has 12 divisors (see below), whose sum is σ = 336715080. Its totient is φ = 51802308.

The previous prime is 155406941. The next prime is 155406943. The reversal of 155406942 is 249604551.

155406942 is a `hidden beast` number, since 1 + 554 + 0 + 69 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (155406941) and next prime (155406943).

It is a junction number, because it is equal to n+sod(n) for n = 155406897 and 155406906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155406941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4316842 + ... + 4316877.

It is an arithmetic number, because the mean of its divisors is an integer number (28059590).

Almost surely, 2^155406942 is an apocalyptic number.

155406942 is an abundant number, since it is smaller than the sum of its proper divisors (181308138).

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

155406942 is a wasteful number, since it uses less digits than its factorization.

155406942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8633727 (or 8633724 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 155406942 is about 12466.2320690736. The cubic root of 155406942 is about 537.6382245554.

The spelling of 155406942 in words is "one hundred fifty-five million, four hundred six thousand, nine hundred forty-two".