151979779 has 16 divisors (see below), whose sum is σ = 187386048. Its totient is φ = 120287232.

The previous prime is 151979761. The next prime is 151979783. The reversal of 151979779 is 977979151.

It is a cyclic number.

It is not a de Polignac number, because 151979779 - 2¹⁵ = 151947011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151973779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5742 + ... + 18355.

It is an arithmetic number, because the mean of its divisors is an integer number (11711628).

Almost surely, 2^151979779 is an apocalyptic number.

151979779 is a deficient number, since it is larger than the sum of its proper divisors (35406269).

151979779 is a wasteful number, since it uses less digits than its factorization.

151979779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24174.

The product of its digits is 1250235, while the sum is 55.

The square root of 151979779 is about 12328.0079088229. The cubic root of 151979779 is about 533.6566630152.

It can be divided in two parts, 15197 and 9779, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 151979779 in words is "one hundred fifty-one million, nine hundred seventy-nine thousand, seven hundred seventy-nine".