150775381 has 4 divisors (see below), whose sum is σ = 150803712. Its totient is φ = 150747052.

The previous prime is 150775369. The next prime is 150775399. The reversal of 150775381 is 183577051.

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: 183577051 = 7 ⋅26225293.

It is a cyclic number.

It is not a de Polignac number, because 150775381 - 2⁵ = 150775349 is a prime.

It is a super-2 number, since 2×150775381² = 45466431031390322, 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 150775381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150775981) 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, 3511 + ... + 17716.

It is an arithmetic number, because the mean of its divisors is an integer number (37700928).

Almost surely, 2^150775381 is an apocalyptic number.

It is an amenable number.

150775381 is a deficient number, since it is larger than the sum of its proper divisors (28331).

150775381 is an equidigital number, since it uses as much as digits as its factorization.

150775381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28330.

The product of its (nonzero) digits is 29400, while the sum is 37.

The square root of 150775381 is about 12279.0627085295. The cubic root of 150775381 is about 532.2432285672.

The spelling of 150775381 in words is "one hundred fifty million, seven hundred seventy-five thousand, three hundred eighty-one".