137789945 has 8 divisors (see below), whose sum is σ = 165418944. Its totient is φ = 110184624.

The previous prime is 137789929. The next prime is 137789959. The reversal of 137789945 is 549987731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137789945 - 2⁴ = 137789929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11612 + ... + 20258.

It is an arithmetic number, because the mean of its divisors is an integer number (20677368).

Almost surely, 2^137789945 is an apocalyptic number.

It is an amenable number.

137789945 is a deficient number, since it is larger than the sum of its proper divisors (27628999).

137789945 is an equidigital number, since it uses as much as digits as its factorization.

137789945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11839.

The product of its digits is 1905120, while the sum is 53.

The square root of 137789945 is about 11738.3961851694. The cubic root of 137789945 is about 516.5025963027.

The spelling of 137789945 in words is "one hundred thirty-seven million, seven hundred eighty-nine thousand, nine hundred forty-five".