137876493 has 4 divisors (see below), whose sum is σ = 183835328. Its totient is φ = 91917660.

The previous prime is 137876491. The next prime is 137876503. The reversal of 137876493 is 394678731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394678731 = 3 ⋅131559577.

It is not a de Polignac number, because 137876493 - 2¹ = 137876491 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137876491) 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 in 3 ways as a sum of consecutive naturals, for example, 22979413 + ... + 22979418.

It is an arithmetic number, because the mean of its divisors is an integer number (45958832).

Almost surely, 2^137876493 is an apocalyptic number.

It is an amenable number.

137876493 is a deficient number, since it is larger than the sum of its proper divisors (45958835).

137876493 is an equidigital number, since it uses as much as digits as its factorization.

137876493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45958834.

The product of its digits is 762048, while the sum is 48.

The square root of 137876493 is about 11742.0821407449. The cubic root of 137876493 is about 516.6107147642.

The spelling of 137876493 in words is "one hundred thirty-seven million, eight hundred seventy-six thousand, four hundred ninety-three".