150023381 has 2 divisors, whose sum is σ = 150023382. Its totient is φ = 150023380.

The previous prime is 150023359. The next prime is 150023383. The reversal of 150023381 is 183320051.

150023381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143185156 + 6838225 = 11966^2 + 2615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150023381 is a prime.

It is a super-2 number, since 2×150023381² = 45014029693342322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 150023383, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150023383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75011690 + 75011691.

It is an arithmetic number, because the mean of its divisors is an integer number (75011691).

Almost surely, 2^150023381 is an apocalyptic number.

It is an amenable number.

150023381 is a deficient number, since it is larger than the sum of its proper divisors (1).

150023381 is an equidigital number, since it uses as much as digits as its factorization.

150023381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 150023381 is about 12248.4032020505. The cubic root of 150023381 is about 531.3568898459.

The spelling of 150023381 in words is "one hundred fifty million, twenty-three thousand, three hundred eighty-one".