151851979 has 2 divisors, whose sum is σ = 151851980. Its totient is φ = 151851978.

The previous prime is 151851893. The next prime is 151851989. The reversal of 151851979 is 979158151.

It is a strong prime.

It is an emirp because it is prime and its reverse (979158151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151851979 - 2⁹ = 151851467 is a prime.

It is not a weakly prime, because it can be changed into another prime (151851989) 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 as a sum of consecutive naturals, namely, 75925989 + 75925990.

It is an arithmetic number, because the mean of its divisors is an integer number (75925990).

Almost surely, 2^151851979 is an apocalyptic number.

151851979 is a deficient number, since it is larger than the sum of its proper divisors (1).

151851979 is an equidigital number, since it uses as much as digits as its factorization.

151851979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 46.

The square root of 151851979 is about 12322.8234995069. The cubic root of 151851979 is about 533.5070368658.

The spelling of 151851979 in words is "one hundred fifty-one million, eight hundred fifty-one thousand, nine hundred seventy-nine".