139962650 has 12 divisors (see below), whose sum is σ = 260330622. Its totient is φ = 55985040.

The previous prime is 139962637. The next prime is 139962661. The reversal of 139962650 is 56269931.

It can be written as a sum of positive squares in 3 ways, for example, as 136726249 + 3236401 = 11693^2 + 1799^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 139962598 and 139962607.

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 5 ways as a sum of consecutive naturals, for example, 1399577 + ... + 1399676.

Almost surely, 2^139962650 is an apocalyptic number.

139962650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139962650 is a deficient number, since it is larger than the sum of its proper divisors (120367972).

139962650 is a wasteful number, since it uses less digits than its factorization.

139962650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799265 (or 2799260 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 139962650 is about 11830.5811353458. The cubic root of 139962650 is about 519.2032299699.

The spelling of 139962650 in words is "one hundred thirty-nine million, nine hundred sixty-two thousand, six hundred fifty".