139174797 has 16 divisors (see below), whose sum is σ = 192346880. Its totient is φ = 89439552.

The previous prime is 139174769. The next prime is 139174813. The reversal of 139174797 is 797471931.

It is not a de Polignac number, because 139174797 - 2¹⁰ = 139173773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139174757) 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 15 ways as a sum of consecutive naturals, for example, 6348 + ... + 17850.

It is an arithmetic number, because the mean of its divisors is an integer number (12021680).

Almost surely, 2^139174797 is an apocalyptic number.

It is an amenable number.

139174797 is a deficient number, since it is larger than the sum of its proper divisors (53172083).

139174797 is a wasteful number, since it uses less digits than its factorization.

139174797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11652.

The product of its digits is 333396, while the sum is 48.

The square root of 139174797 is about 11797.2368374972. The cubic root of 139174797 is about 518.2271939587.

It can be divided in two parts, 139 and 174797, that added together give a triangular number (174936 = T₅₉₁).

The spelling of 139174797 in words is "one hundred thirty-nine million, one hundred seventy-four thousand, seven hundred ninety-seven".