137373811 has 4 divisors (see below), whose sum is σ = 139112800. Its totient is φ = 135634824.

The previous prime is 137373791. The next prime is 137373823. The reversal of 137373811 is 118373731.

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: 118373731 = 7 ⋅16910533.

It is a cyclic number.

It is not a de Polignac number, because 137373811 - 2⁷ = 137373683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137373611) 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, 869376 + ... + 869533.

It is an arithmetic number, because the mean of its divisors is an integer number (34778200).

Almost surely, 2^137373811 is an apocalyptic number.

137373811 is a deficient number, since it is larger than the sum of its proper divisors (1738989).

137373811 is an equidigital number, since it uses as much as digits as its factorization.

137373811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738988.

The product of its digits is 10584, while the sum is 34.

The square root of 137373811 is about 11720.6574474302. The cubic root of 137373811 is about 515.9821155891.

The spelling of 137373811 in words is "one hundred thirty-seven million, three hundred seventy-three thousand, eight hundred eleven".