139937419 has 8 divisors (see below), whose sum is σ = 143034192. Its totient is φ = 136874400.

The previous prime is 139937401. The next prime is 139937461. The reversal of 139937419 is 914739931.

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 139937419 - 2²³ = 131548811 is a prime.

It is a super-2 number, since 2×139937419² = 39164962472763122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139938419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37 + ... + 16729.

It is an arithmetic number, because the mean of its divisors is an integer number (17879274).

Almost surely, 2^139937419 is an apocalyptic number.

139937419 is a deficient number, since it is larger than the sum of its proper divisors (3096773).

139937419 is a wasteful number, since it uses less digits than its factorization.

139937419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16877.

The product of its digits is 183708, while the sum is 46.

The square root of 139937419 is about 11829.5147406815. The cubic root of 139937419 is about 519.1720292556.

It can be divided in two parts, 13993 and 7419, that added together give a palindrome (21412).

The spelling of 139937419 in words is "one hundred thirty-nine million, nine hundred thirty-seven thousand, four hundred nineteen".