150302981 has 4 divisors (see below), whose sum is σ = 151450464. Its totient is φ = 149155500.

The previous prime is 150302927. The next prime is 150302983. The reversal of 150302981 is 189203051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 189203051 = 2383 ⋅79397.

It is a cyclic number.

It is not a de Polignac number, because 150302981 - 2²⁶ = 83194117 is a prime.

It is a super-2 number, since 2×150302981² = 45181972194972722, which 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 (150302983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573545 + ... + 573806.

It is an arithmetic number, because the mean of its divisors is an integer number (37862616).

Almost surely, 2^150302981 is an apocalyptic number.

It is an amenable number.

150302981 is a deficient number, since it is larger than the sum of its proper divisors (1147483).

150302981 is a wasteful number, since it uses less digits than its factorization.

150302981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147482.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 150302981 is about 12259.8116217175. The cubic root of 150302981 is about 531.6867832829.

The spelling of 150302981 in words is "one hundred fifty million, three hundred two thousand, nine hundred eighty-one".