137880789 has 4 divisors (see below), whose sum is σ = 183841056. Its totient is φ = 91920524.

The previous prime is 137880767. The next prime is 137880823. The reversal of 137880789 is 987088731.

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.

It is a cyclic number.

It is not a de Polignac number, because 137880789 - 2⁹ = 137880277 is a prime.

It is a super-2 number, since 2×137880789² = 38022223950525042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137880709) 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, 22980129 + ... + 22980134.

It is an arithmetic number, because the mean of its divisors is an integer number (45960264).

Almost surely, 2^137880789 is an apocalyptic number.

It is an amenable number.

137880789 is a deficient number, since it is larger than the sum of its proper divisors (45960267).

137880789 is an equidigital number, since it uses as much as digits as its factorization.

137880789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45960266.

The product of its (nonzero) digits is 677376, while the sum is 51.

The square root of 137880789 is about 11742.2650711011. The cubic root of 137880789 is about 516.6160802826.

The spelling of 137880789 in words is "one hundred thirty-seven million, eight hundred eighty thousand, seven hundred eighty-nine".