149892613 has 4 divisors (see below), whose sum is σ = 161422828. Its totient is φ = 138362400.

The previous prime is 149892607. The next prime is 149892623. The reversal of 149892613 is 316298941.

It is a happy number.

149892613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29398084 + 120494529 = 5422^2 + 10977^2 .

It is a cyclic number.

It is not a de Polignac number, because 149892613 - 2⁵ = 149892581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149892613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149892623) 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, 5765088 + ... + 5765113.

It is an arithmetic number, because the mean of its divisors is an integer number (40355707).

Almost surely, 2^149892613 is an apocalyptic number.

149892613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

149892613 is a deficient number, since it is larger than the sum of its proper divisors (11530215).

149892613 is a wasteful number, since it uses less digits than its factorization.

149892613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11530214.

The product of its digits is 93312, while the sum is 43.

The square root of 149892613 is about 12243.0638730671. The cubic root of 149892613 is about 531.2024590814.

The spelling of 149892613 in words is "one hundred forty-nine million, eight hundred ninety-two thousand, six hundred thirteen".