139814637 has 8 divisors (see below), whose sum is σ = 188973504. Its totient is φ = 91932768.

The previous prime is 139814617. The next prime is 139814657. The reversal of 139814637 is 736418931.

It is an interprime number because it is at equal distance from previous prime (139814617) and next prime (139814657).

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

It is not a de Polignac number, because 139814637 - 2⁷ = 139814509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139814617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318993 + ... + 319430.

It is an arithmetic number, because the mean of its divisors is an integer number (23621688).

Almost surely, 2^139814637 is an apocalyptic number.

It is an amenable number.

139814637 is a deficient number, since it is larger than the sum of its proper divisors (49158867).

139814637 is an equidigital number, since it uses as much as digits as its factorization.

139814637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638499.

The product of its digits is 108864, while the sum is 42.

The square root of 139814637 is about 11824.3239553050. The cubic root of 139814637 is about 519.0201431886.

The spelling of 139814637 in words is "one hundred thirty-nine million, eight hundred fourteen thousand, six hundred thirty-seven".