149871479 has 2 divisors, whose sum is σ = 149871480. Its totient is φ = 149871478.

The previous prime is 149871451. The next prime is 149871481. The reversal of 149871479 is 974178941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149871479 is a prime.

It is a super-2 number, since 2×149871479² = 44922920435294882, which contains 22 as substring.

Together with 149871481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149877479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74935739 + 74935740.

It is an arithmetic number, because the mean of its divisors is an integer number (74935740).

Almost surely, 2^149871479 is an apocalyptic number.

149871479 is a deficient number, since it is larger than the sum of its proper divisors (1).

149871479 is an equidigital number, since it uses as much as digits as its factorization.

149871479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 50.

The square root of 149871479 is about 12242.2007416967. The cubic root of 149871479 is about 531.1774924065.

The spelling of 149871479 in words is "one hundred forty-nine million, eight hundred seventy-one thousand, four hundred seventy-nine".