150562421 has 4 divisors (see below), whose sum is σ = 159419052. Its totient is φ = 141705792.

The previous prime is 150562411. The next prime is 150562429. The reversal of 150562421 is 124265051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124265051 = 97 ⋅1281083.

It can be written as a sum of positive squares in 2 ways, for example, as 128368900 + 22193521 = 11330^2 + 4711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150562421 is a prime.

It is a super-3 number, since 3×150562421³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150562429) 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, 4428290 + ... + 4428323.

It is an arithmetic number, because the mean of its divisors is an integer number (39854763).

Almost surely, 2^150562421 is an apocalyptic number.

It is an amenable number.

150562421 is a deficient number, since it is larger than the sum of its proper divisors (8856631).

150562421 is an equidigital number, since it uses as much as digits as its factorization.

150562421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8856630.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 150562421 is about 12270.3879726763. The cubic root of 150562421 is about 531.9925246750.

The spelling of 150562421 in words is "one hundred fifty million, five hundred sixty-two thousand, four hundred twenty-one".