137965801 has 4 divisors (see below), whose sum is σ = 141174352. Its totient is φ = 134757252.

The previous prime is 137965787. The next prime is 137965811. The reversal of 137965801 is 108569731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108569731 = 797 ⋅136223.

It is a cyclic number.

It is not a de Polignac number, because 137965801 - 2¹⁷ = 137834729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137965811) 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, 1604211 + ... + 1604296.

It is an arithmetic number, because the mean of its divisors is an integer number (35293588).

Almost surely, 2^137965801 is an apocalyptic number.

It is an amenable number.

137965801 is a deficient number, since it is larger than the sum of its proper divisors (3208551).

137965801 is an equidigital number, since it uses as much as digits as its factorization.

137965801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208550.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 137965801 is about 11745.8844281731. The cubic root of 137965801 is about 516.7222336814.

The spelling of 137965801 in words is "one hundred thirty-seven million, nine hundred sixty-five thousand, eight hundred one".