155510042 has 8 divisors (see below), whose sum is σ = 233436000. Its totient is φ = 77698044.

The previous prime is 155510023. The next prime is 155510051. The reversal of 155510042 is 240015551.

It is a happy number.

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

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, 24992 + ... + 30587.

It is an arithmetic number, because the mean of its divisors is an integer number (29179500).

Almost surely, 2^155510042 is an apocalyptic number.

155510042 is a deficient number, since it is larger than the sum of its proper divisors (77925958).

155510042 is a wasteful number, since it uses less digits than its factorization.

155510042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56980.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 155510042 is about 12470.3665543560. The cubic root of 155510042 is about 537.7570915053.

Adding to 155510042 its reverse (240015551), we get a palindrome (395525593).

The spelling of 155510042 in words is "one hundred fifty-five million, five hundred ten thousand, forty-two".