151661189 has 8 divisors (see below), whose sum is σ = 155332320. Its totient is φ = 148028400.

The previous prime is 151661123. The next prime is 151661201. The reversal of 151661189 is 981166151.

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

It is a cyclic number.

It is not a de Polignac number, because 151661189 - 2⁸ = 151660933 is a prime.

It is a super-2 number, since 2×151661189² = 46002232497787442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151661089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1499 + ... + 17480.

It is an arithmetic number, because the mean of its divisors is an integer number (19416540).

Almost surely, 2^151661189 is an apocalyptic number.

It is an amenable number.

151661189 is a deficient number, since it is larger than the sum of its proper divisors (3671131).

151661189 is a wasteful number, since it uses less digits than its factorization.

151661189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19171.

The product of its digits is 12960, while the sum is 38.

The square root of 151661189 is about 12315.0797398961. The cubic root of 151661189 is about 533.2835067600.

The spelling of 151661189 in words is "one hundred fifty-one million, six hundred sixty-one thousand, one hundred eighty-nine".