149423994915 has 128 divisors (see below), whose sum is σ = 273466368000. Its totient is φ = 69065478144.

The previous prime is 149423994911. The next prime is 149423994919. The reversal of 149423994915 is 519499324941.

It is a Cunningham number, because it is equal to 386554²-1.

It is an interprime number because it is at equal distance from previous prime (149423994911) and next prime (149423994919).

It is not a de Polignac number, because 149423994915 - 2² = 149423994911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149423994911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 311949646 + ... + 311950124.

It is an arithmetic number, because the mean of its divisors is an integer number (2136456000).

Almost surely, 2^149423994915 is an apocalyptic number.

149423994915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149423994915 is a deficient number, since it is larger than the sum of its proper divisors (124042373085).

149423994915 is a wasteful number, since it uses less digits than its factorization.

149423994915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101.

The product of its digits is 12597120, while the sum is 60.

The spelling of 149423994915 in words is "one hundred forty-nine billion, four hundred twenty-three million, nine hundred ninety-four thousand, nine hundred fifteen".