155740942 has 8 divisors (see below), whose sum is σ = 266984496. Its totient is φ = 66746112.

The previous prime is 155740913. The next prime is 155740979. The reversal of 155740942 is 249047551.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5562163 + ... + 5562190.

It is an arithmetic number, because the mean of its divisors is an integer number (33373062).

Almost surely, 2^155740942 is an apocalyptic number.

155740942 is a deficient number, since it is larger than the sum of its proper divisors (111243554).

155740942 is a wasteful number, since it uses less digits than its factorization.

155740942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11124362.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 155740942 is about 12479.6210679652. The cubic root of 155740942 is about 538.0231122863.

The spelling of 155740942 in words is "one hundred fifty-five million, seven hundred forty thousand, nine hundred forty-two".