151613661 has 8 divisors (see below), whose sum is σ = 202234240. Its totient is φ = 101034432.

The previous prime is 151613641. The next prime is 151613779. The reversal of 151613661 is 166316151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 151613661 - 2⁷ = 151613533 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 (151613641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421 + ... + 17418.

It is an arithmetic number, because the mean of its divisors is an integer number (25279280).

Almost surely, 2^151613661 is an apocalyptic number.

It is an amenable number.

151613661 is a deficient number, since it is larger than the sum of its proper divisors (50620579).

151613661 is a wasteful number, since it uses less digits than its factorization.

151613661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20675.

The product of its digits is 3240, while the sum is 30.

The square root of 151613661 is about 12313.1499219331. The cubic root of 151613661 is about 533.2277936564.

The spelling of 151613661 in words is "one hundred fifty-one million, six hundred thirteen thousand, six hundred sixty-one".