151979989 has 8 divisors (see below), whose sum is σ = 177928128. Its totient is φ = 127091040.

The previous prime is 151979957. The next prime is 151980001. The reversal of 151979989 is 989979151.

It is a happy number.

151979989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 151979989 - 2⁵ = 151979957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151979909) 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, 264487 + ... + 265060.

It is an arithmetic number, because the mean of its divisors is an integer number (22241016).

Almost surely, 2^151979989 is an apocalyptic number.

It is an amenable number.

151979989 is a deficient number, since it is larger than the sum of its proper divisors (25948139).

151979989 is an equidigital number, since it uses as much as digits as its factorization.

151979989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529595.

The product of its digits is 1837080, while the sum is 58.

The square root of 151979989 is about 12328.0164260111. The cubic root of 151979989 is about 533.6569088107.

The spelling of 151979989 in words is "one hundred fifty-one million, nine hundred seventy-nine thousand, nine hundred eighty-nine".