137111819 has 4 divisors (see below), whose sum is σ = 147658896. Its totient is φ = 126564744.

The previous prime is 137111801. The next prime is 137111839. The reversal of 137111819 is 918111731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 918111731 = 7211 ⋅127321.

It is a cyclic number.

It is not a de Polignac number, because 137111819 - 2¹² = 137107723 is a prime.

It is a super-2 number, since 2×137111819² = 37599301818977522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137111839) 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, 5273519 + ... + 5273544.

It is an arithmetic number, because the mean of its divisors is an integer number (36914724).

Almost surely, 2^137111819 is an apocalyptic number.

137111819 is a deficient number, since it is larger than the sum of its proper divisors (10547077).

137111819 is a wasteful number, since it uses less digits than its factorization.

137111819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10547076.

The product of its digits is 1512, while the sum is 32.

The square root of 137111819 is about 11709.4756073874. The cubic root of 137111819 is about 515.6538889917.

The spelling of 137111819 in words is "one hundred thirty-seven million, one hundred eleven thousand, eight hundred nineteen".