139371274 has 32 divisors (see below), whose sum is σ = 248238720. Its totient is φ = 57419712.

The previous prime is 139371263. The next prime is 139371301. The reversal of 139371274 is 472173931.

It is a happy number.

It is a super-3 number, since 3×139371274³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 114292 + ... + 115504.

It is an arithmetic number, because the mean of its divisors is an integer number (7757460).

Almost surely, 2^139371274 is an apocalyptic number.

139371274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

139371274 is a deficient number, since it is larger than the sum of its proper divisors (108867446).

139371274 is a wasteful number, since it uses less digits than its factorization.

139371274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534.

The product of its digits is 31752, while the sum is 37.

The square root of 139371274 is about 11805.5611471882. The cubic root of 139371274 is about 518.4709446238.

The spelling of 139371274 in words is "one hundred thirty-nine million, three hundred seventy-one thousand, two hundred seventy-four".