150516391 has 2 divisors, whose sum is σ = 150516392. Its totient is φ = 150516390.

The previous prime is 150516367. The next prime is 150516403. The reversal of 150516391 is 193615051.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 150516391 - 2⁷ = 150516263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150516491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75258195 + 75258196.

It is an arithmetic number, because the mean of its divisors is an integer number (75258196).

Almost surely, 2^150516391 is an apocalyptic number.

150516391 is a deficient number, since it is larger than the sum of its proper divisors (1).

150516391 is an equidigital number, since it uses as much as digits as its factorization.

150516391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 150516391 is about 12268.5121754840. The cubic root of 150516391 is about 531.9383054977.

The spelling of 150516391 in words is "one hundred fifty million, five hundred sixteen thousand, three hundred ninety-one".