150392021 has 4 divisors (see below), whose sum is σ = 161960652. Its totient is φ = 138823392.

The previous prime is 150391993. The next prime is 150392029. The reversal of 150392021 is 120293051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120293051 = 31 ⋅3880421.

It can be written as a sum of positive squares in 2 ways, for example, as 10797796 + 139594225 = 3286^2 + 11815^2 .

It is a cyclic number.

It is not a de Polignac number, because 150392021 - 2⁶ = 150391957 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 (150392029) 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, 5784296 + ... + 5784321.

It is an arithmetic number, because the mean of its divisors is an integer number (40490163).

Almost surely, 2^150392021 is an apocalyptic number.

It is an amenable number.

150392021 is a deficient number, since it is larger than the sum of its proper divisors (11568631).

150392021 is a wasteful number, since it uses less digits than its factorization.

150392021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11568630.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 150392021 is about 12263.4424612341. The cubic root of 150392021 is about 531.7917535804.

The spelling of 150392021 in words is "one hundred fifty million, three hundred ninety-two thousand, twenty-one".