137381919 has 8 divisors (see below), whose sum is σ = 183242112. Its totient is φ = 91554840.

The previous prime is 137381911. The next prime is 137381929. The reversal of 137381919 is 919183731.

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

It is not a de Polignac number, because 137381919 - 2³ = 137381911 is a prime.

It is a super-2 number, since 2×137381919² = 37747583336245122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137381911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4012 + ... + 17054.

It is an arithmetic number, because the mean of its divisors is an integer number (22905264).

Almost surely, 2^137381919 is an apocalyptic number.

137381919 is a deficient number, since it is larger than the sum of its proper divisors (45860193).

137381919 is a wasteful number, since it uses less digits than its factorization.

137381919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16557.

The product of its digits is 40824, while the sum is 42.

The square root of 137381919 is about 11721.0033273607. The cubic root of 137381919 is about 515.9922667250.

The spelling of 137381919 in words is "one hundred thirty-seven million, three hundred eighty-one thousand, nine hundred nineteen".