151665061 has 4 divisors (see below), whose sum is σ = 152159392. Its totient is φ = 151170732.

The previous prime is 151665001. The next prime is 151665067. The reversal of 151665061 is 160566151.

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 a de Polignac number, because none of the positive numbers 2^k-151665061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151665067) 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, 246705 + ... + 247318.

It is an arithmetic number, because the mean of its divisors is an integer number (38039848).

Almost surely, 2^151665061 is an apocalyptic number.

It is an amenable number.

151665061 is a deficient number, since it is larger than the sum of its proper divisors (494331).

151665061 is an equidigital number, since it uses as much as digits as its factorization.

151665061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494330.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 151665061 is about 12315.2369445334. The cubic root of 151665061 is about 533.2880450694.

The spelling of 151665061 in words is "one hundred fifty-one million, six hundred sixty-five thousand, sixty-one".