137263117 has 4 divisors (see below), whose sum is σ = 145337436. Its totient is φ = 129188800.

The previous prime is 137263111. The next prime is 137263127. The reversal of 137263117 is 711362731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56640676 + 80622441 = 7526^2 + 8979^2 .

It is a cyclic number.

It is not a de Polignac number, because 137263117 - 2⁷ = 137262989 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137263111) 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, 4037134 + ... + 4037167.

It is an arithmetic number, because the mean of its divisors is an integer number (36334359).

Almost surely, 2^137263117 is an apocalyptic number.

137263117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

137263117 is a deficient number, since it is larger than the sum of its proper divisors (8074319).

137263117 is an equidigital number, since it uses as much as digits as its factorization.

137263117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074318.

The product of its digits is 5292, while the sum is 31.

The square root of 137263117 is about 11715.9343204031. The cubic root of 137263117 is about 515.8434878262.

The spelling of 137263117 in words is "one hundred thirty-seven million, two hundred sixty-three thousand, one hundred seventeen".