139392491302 has 8 divisors (see below), whose sum is σ = 209280038256. Its totient is φ = 69632478552.

The previous prime is 139392491297. The next prime is 139392491311. The reversal of 139392491302 is 203194293931.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31880818 + ... + 31885189.

It is an arithmetic number, because the mean of its divisors is an integer number (26160004782).

Almost surely, 2^139392491302 is an apocalyptic number.

139392491302 is a deficient number, since it is larger than the sum of its proper divisors (69887546954).

139392491302 is a wasteful number, since it uses less digits than its factorization.

139392491302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63767102.

The product of its (nonzero) digits is 314928, while the sum is 46.

It can be divided in two parts, 1393924 and 91302, that added together give a triangular number (1485226 = T₁₇₂₃).

The spelling of 139392491302 in words is "one hundred thirty-nine billion, three hundred ninety-two million, four hundred ninety-one thousand, three hundred two".