139192641 has 16 divisors (see below), whose sum is σ = 235670400. Its totient is φ = 79538544.

The previous prime is 139192639. The next prime is 139192649. The reversal of 139192641 is 146291931.

It is a happy number.

139192641 is a `hidden beast` number, since 1 + 3 + 9 + 1 + 9 + 2 + 641 = 666.

It is not a de Polignac number, because 139192641 - 2¹ = 139192639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139192596 and 139192605.

It is not an unprimeable number, because it can be changed into a prime (139192649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368046 + ... + 368423.

It is an arithmetic number, because the mean of its divisors is an integer number (14729400).

Almost surely, 2^139192641 is an apocalyptic number.

It is an amenable number.

139192641 is a deficient number, since it is larger than the sum of its proper divisors (96477759).

139192641 is an equidigital number, since it uses as much as digits as its factorization.

139192641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736485 (or 736479 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 139192641 is about 11797.9930920475. The cubic root of 139192641 is about 518.2493408106.

The spelling of 139192641 in words is "one hundred thirty-nine million, one hundred ninety-two thousand, six hundred forty-one".