137812407 has 8 divisors (see below), whose sum is σ = 184126080. Its totient is φ = 91686840.

The previous prime is 137812403. The next prime is 137812447. The reversal of 137812407 is 704218731.

It is a happy number.

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

It is not a de Polignac number, because 137812407 - 2² = 137812403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137812403) 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, 45307 + ... + 48252.

It is an arithmetic number, because the mean of its divisors is an integer number (23015760).

Almost surely, 2^137812407 is an apocalyptic number.

137812407 is a deficient number, since it is larger than the sum of its proper divisors (46313673).

137812407 is an equidigital number, since it uses as much as digits as its factorization.

137812407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94053.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 137812407 is about 11739.3529208385. The cubic root of 137812407 is about 516.5306608831.

The spelling of 137812407 in words is "one hundred thirty-seven million, eight hundred twelve thousand, four hundred seven".