150605551 has 4 divisors (see below), whose sum is σ = 150639592. Its totient is φ = 150571512.

The previous prime is 150605537. The next prime is 150605561. The reversal of 150605551 is 155506051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 150605551 - 2⁵ = 150605519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150605501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9180 + ... + 19633.

It is an arithmetic number, because the mean of its divisors is an integer number (37659898).

Almost surely, 2^150605551 is an apocalyptic number.

150605551 is a deficient number, since it is larger than the sum of its proper divisors (34041).

150605551 is an equidigital number, since it uses as much as digits as its factorization.

150605551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34040.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 150605551 is about 12272.1453299739. The cubic root of 150605551 is about 532.0433178872.

The spelling of 150605551 in words is "one hundred fifty million, six hundred five thousand, five hundred fifty-one".