150715993 has 4 divisors (see below), whose sum is σ = 150742288. Its totient is φ = 150689700.

The previous prime is 150715991. The next prime is 150716003. The reversal of 150715993 is 399517051.

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.

It is a cyclic number.

It is not a de Polignac number, because 150715993 - 2¹ = 150715991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150715991) 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, 483 + ... + 17368.

It is an arithmetic number, because the mean of its divisors is an integer number (37685572).

Almost surely, 2^150715993 is an apocalyptic number.

It is an amenable number.

150715993 is a deficient number, since it is larger than the sum of its proper divisors (26295).

150715993 is an equidigital number, since it uses as much as digits as its factorization.

150715993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26294.

The product of its (nonzero) digits is 42525, while the sum is 40.

The square root of 150715993 is about 12276.6442076001. The cubic root of 150715993 is about 532.1733387049.

The spelling of 150715993 in words is "one hundred fifty million, seven hundred fifteen thousand, nine hundred ninety-three".