139492135 has 4 divisors (see below), whose sum is σ = 167390568. Its totient is φ = 111593704.

The previous prime is 139492081. The next prime is 139492141. The reversal of 139492135 is 531294931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139492135 - 2⁷ = 139492007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139492094 and 139492103.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13949209 + ... + 13949218.

It is an arithmetic number, because the mean of its divisors is an integer number (41847642).

Almost surely, 2^139492135 is an apocalyptic number.

139492135 is a deficient number, since it is larger than the sum of its proper divisors (27898433).

139492135 is an equidigital number, since it uses as much as digits as its factorization.

139492135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27898432.

The product of its digits is 29160, while the sum is 37.

The square root of 139492135 is about 11810.6788543250. The cubic root of 139492135 is about 518.6207717971.

The spelling of 139492135 in words is "one hundred thirty-nine million, four hundred ninety-two thousand, one hundred thirty-five".