151764961 has 4 divisors (see below), whose sum is σ = 152202672. Its totient is φ = 151327252.

The previous prime is 151764959. The next prime is 151764973. The reversal of 151764961 is 169467151.

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 151764961 - 2¹ = 151764959 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151764161) 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, 218335 + ... + 219028.

It is an arithmetic number, because the mean of its divisors is an integer number (38050668).

Almost surely, 2^151764961 is an apocalyptic number.

It is an amenable number.

151764961 is a deficient number, since it is larger than the sum of its proper divisors (437711).

151764961 is an equidigital number, since it uses as much as digits as its factorization.

151764961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437710.

The product of its digits is 45360, while the sum is 40.

The square root of 151764961 is about 12319.2922280462. The cubic root of 151764961 is about 533.4051095673.

The spelling of 151764961 in words is "one hundred fifty-one million, seven hundred sixty-four thousand, nine hundred sixty-one".