150331481 has 4 divisors (see below), whose sum is σ = 154394532. Its totient is φ = 146268432.

The previous prime is 150331429. The next prime is 150331513. The reversal of 150331481 is 184133051.

150331481 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 132825625 + 17505856 = 11525^2 + 4184^2 .

It is a cyclic number.

It is not a de Polignac number, because 150331481 - 2²⁶ = 83222617 is a prime.

It is a super-2 number, since 2×150331481² = 45199108359306722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150331481.

It is not an unprimeable number, because it can be changed into a prime (150331411) 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, 2031470 + ... + 2031543.

It is an arithmetic number, because the mean of its divisors is an integer number (38598633).

Almost surely, 2^150331481 is an apocalyptic number.

It is an amenable number.

150331481 is a deficient number, since it is larger than the sum of its proper divisors (4063051).

150331481 is an equidigital number, since it uses as much as digits as its factorization.

150331481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063050.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 150331481 is about 12260.9739009591. The cubic root of 150331481 is about 531.7203867763.

The spelling of 150331481 in words is "one hundred fifty million, three hundred thirty-one thousand, four hundred eighty-one".