137982797 has 8 divisors (see below), whose sum is σ = 140914944. Its totient is φ = 135062928.

The previous prime is 137982781. The next prime is 137982799. The reversal of 137982797 is 797289731.

137982797 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 137982797 - 2⁴ = 137982781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137982799) 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, 21728 + ... + 27350.

It is an arithmetic number, because the mean of its divisors is an integer number (17614368).

Almost surely, 2^137982797 is an apocalyptic number.

It is an amenable number.

137982797 is a deficient number, since it is larger than the sum of its proper divisors (2932147).

137982797 is an equidigital number, since it uses as much as digits as its factorization.

137982797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6139.

The product of its digits is 1333584, while the sum is 53.

The square root of 137982797 is about 11746.6078933452. The cubic root of 137982797 is about 516.7434511387.

The spelling of 137982797 in words is "one hundred thirty-seven million, nine hundred eighty-two thousand, seven hundred ninety-seven".