139492419 has 8 divisors (see below), whose sum is σ = 202898112. Its totient is φ = 84540840.

The previous prime is 139492399. The next prime is 139492427. The reversal of 139492419 is 914294931.

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

It is not a de Polignac number, because 139492419 - 2⁸ = 139492163 is a prime.

It is a super-2 number, since 2×139492419² = 38916269916943122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139492469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113489 + ... + 2113554.

It is an arithmetic number, because the mean of its divisors is an integer number (25362264).

Almost surely, 2^139492419 is an apocalyptic number.

139492419 is a deficient number, since it is larger than the sum of its proper divisors (63405693).

139492419 is a wasteful number, since it uses less digits than its factorization.

139492419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227057.

The product of its digits is 69984, while the sum is 42.

The square root of 139492419 is about 11810.6908773365. The cubic root of 139492419 is about 518.6211237600.

The spelling of 139492419 in words is "one hundred thirty-nine million, four hundred ninety-two thousand, four hundred nineteen".