149317079 has 4 divisors (see below), whose sum is σ = 149768520. Its totient is φ = 148865640.

The previous prime is 149317061. The next prime is 149317097. The reversal of 149317079 is 970713941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970713941 = 29989 ⋅32369.

It is an interprime number because it is at equal distance from previous prime (149317061) and next prime (149317097).

It is a cyclic number.

It is not a de Polignac number, because 149317079 - 2¹² = 149312983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149317099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225224 + ... + 225885.

It is an arithmetic number, because the mean of its divisors is an integer number (37442130).

Almost surely, 2^149317079 is an apocalyptic number.

149317079 is a deficient number, since it is larger than the sum of its proper divisors (451441).

149317079 is an equidigital number, since it uses as much as digits as its factorization.

149317079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451440.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 149317079 is about 12219.5367751810. The cubic root of 149317079 is about 530.5217112704.

The spelling of 149317079 in words is "one hundred forty-nine million, three hundred seventeen thousand, seventy-nine".