151160721 has 4 divisors (see below), whose sum is σ = 201547632. Its totient is φ = 100773812.

The previous prime is 151160701. The next prime is 151160747. The reversal of 151160721 is 127061151.

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 151160721 - 2⁶ = 151160657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151160691 and 151160700.

It is not an unprimeable number, because it can be changed into a prime (151160701) 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, 25193451 + ... + 25193456.

It is an arithmetic number, because the mean of its divisors is an integer number (50386908).

Almost surely, 2^151160721 is an apocalyptic number.

It is an amenable number.

151160721 is a deficient number, since it is larger than the sum of its proper divisors (50386911).

151160721 is an equidigital number, since it uses as much as digits as its factorization.

151160721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50386910.

The product of its (nonzero) digits is 420, while the sum is 24.

The square root of 151160721 is about 12294.7436329514. The cubic root of 151160721 is about 532.6962647998.

The spelling of 151160721 in words is "one hundred fifty-one million, one hundred sixty thousand, seven hundred twenty-one".