150655021 has 4 divisors (see below), whose sum is σ = 164350944. Its totient is φ = 136959100.

The previous prime is 150655019. The next prime is 150655049. The reversal of 150655021 is 120556051.

150655021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 150655021 - 2¹ = 150655019 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 (150655051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6847945 + ... + 6847966.

It is an arithmetic number, because the mean of its divisors is an integer number (41087736).

Almost surely, 2^150655021 is an apocalyptic number.

150655021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

150655021 is a deficient number, since it is larger than the sum of its proper divisors (13695923).

150655021 is a wasteful number, since it uses less digits than its factorization.

150655021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13695922.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 150655021 is about 12274.1607045044. The cubic root of 150655021 is about 532.1015656332.

The spelling of 150655021 in words is "one hundred fifty million, six hundred fifty-five thousand, twenty-one".