150157809421 has 4 divisors (see below), whose sum is σ = 150159541500. Its totient is φ = 150156077344.

The previous prime is 150157809371. The next prime is 150157809433. The reversal of 150157809421 is 124908751051.

150157809421 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.

It can be written as a sum of positive squares in 2 ways, for example, as 16585833796 + 133571975625 = 128786^2 + 365475^2 .

It is a cyclic number.

It is not a de Polignac number, because 150157809421 - 2²⁷ = 150023591693 is a prime.

It is a super-2 number, since 2×150157809421² (a number of 23 digits) contains 22 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 (150157809481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728746 + ... + 911803.

It is an arithmetic number, because the mean of its divisors is an integer number (37539885375).

Almost surely, 2^150157809421 is an apocalyptic number.

It is an amenable number.

150157809421 is a deficient number, since it is larger than the sum of its proper divisors (1732079).

150157809421 is an equidigital number, since it uses as much as digits as its factorization.

150157809421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732078.

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 150157809421 in words is "one hundred fifty billion, one hundred fifty-seven million, eight hundred nine thousand, four hundred twenty-one".