155450042 has 8 divisors (see below), whose sum is σ = 254372832. Its totient is φ = 70659100.

The previous prime is 155450033. The next prime is 155450059. The reversal of 155450042 is 240054551.

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

It is a junction number, because it is equal to n+sod(n) for n = 155449993 and 155450020.

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, 3532934 + ... + 3532977.

It is an arithmetic number, because the mean of its divisors is an integer number (31796604).

Almost surely, 2^155450042 is an apocalyptic number.

155450042 is a deficient number, since it is larger than the sum of its proper divisors (98922790).

155450042 is a wasteful number, since it uses less digits than its factorization.

155450042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7065924.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 155450042 is about 12467.9606191229. The cubic root of 155450042 is about 537.6879221758.

The spelling of 155450042 in words is "one hundred fifty-five million, four hundred fifty thousand, forty-two".