151791793 has 4 divisors (see below), whose sum is σ = 160720740. Its totient is φ = 142862848.

The previous prime is 151791781. The next prime is 151791803. The reversal of 151791793 is 397197151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56670784 + 95121009 = 7528^2 + 9753^2 .

It is a cyclic number.

It is not a de Polignac number, because 151791793 - 2¹⁷ = 151660721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151798793) 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, 4464448 + ... + 4464481.

It is an arithmetic number, because the mean of its divisors is an integer number (40180185).

Almost surely, 2^151791793 is an apocalyptic number.

It is an amenable number.

151791793 is a deficient number, since it is larger than the sum of its proper divisors (8928947).

151791793 is an equidigital number, since it uses as much as digits as its factorization.

151791793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8928946.

The product of its digits is 59535, while the sum is 43.

The square root of 151791793 is about 12320.3812035180. The cubic root of 151791793 is about 533.4365430032.

The spelling of 151791793 in words is "one hundred fifty-one million, seven hundred ninety-one thousand, seven hundred ninety-three".