150521423 has 4 divisors (see below), whose sum is σ = 162100008. Its totient is φ = 138942840.

The previous prime is 150521381. The next prime is 150521429. The reversal of 150521423 is 324125051.

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 150521423 - 2⁸ = 150521167 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 (150521429) 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, 5789273 + ... + 5789298.

It is an arithmetic number, because the mean of its divisors is an integer number (40525002).

Almost surely, 2^150521423 is an apocalyptic number.

150521423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

150521423 is a deficient number, since it is larger than the sum of its proper divisors (11578585).

150521423 is a wasteful number, since it uses less digits than its factorization.

150521423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11578584.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 150521423 is about 12268.7172516119. The cubic root of 150521423 is about 531.9442332767.

Adding to 150521423 its reverse (324125051), we get a palindrome (474646474).

The spelling of 150521423 in words is "one hundred fifty million, five hundred twenty-one thousand, four hundred twenty-three".