137799397 has 8 divisors (see below), whose sum is σ = 140356800. Its totient is φ = 135249504.

The previous prime is 137799379. The next prime is 137799469. The reversal of 137799397 is 793997731.

It is a happy number.

137799397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 137799397 - 2⁷ = 137799269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137799307) 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, 46288 + ... + 49174.

It is an arithmetic number, because the mean of its divisors is an integer number (17544600).

Almost surely, 2^137799397 is an apocalyptic number.

It is an amenable number.

137799397 is a deficient number, since it is larger than the sum of its proper divisors (2557403).

137799397 is an equidigital number, since it uses as much as digits as its factorization.

137799397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755.

The product of its digits is 2250423, while the sum is 55.

The square root of 137799397 is about 11738.7987886325. The cubic root of 137799397 is about 516.5144062378.

The spelling of 137799397 in words is "one hundred thirty-seven million, seven hundred ninety-nine thousand, three hundred ninety-seven".