139919941 has 12 divisors (see below), whose sum is σ = 164291328. Its totient is φ = 118806072.

The previous prime is 139919929. The next prime is 139919951. The reversal of 139919941 is 149919931.

It is not a de Polignac number, because 139919941 - 2¹¹ = 139917893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139919891 and 139919900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139919951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8101 + ... + 18586.

It is an arithmetic number, because the mean of its divisors is an integer number (13690944).

Almost surely, 2^139919941 is an apocalyptic number.

It is an amenable number.

139919941 is a deficient number, since it is larger than the sum of its proper divisors (24371387).

139919941 is a wasteful number, since it uses less digits than its factorization.

139919941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26808 (or 26801 counting only the distinct ones).

The product of its digits is 78732, while the sum is 46.

The square root of 139919941 is about 11828.7759721790. The cubic root of 139919941 is about 519.1504137206.

It can be divided in two parts, 13991 and 9941, that added together give a palindrome (23932).

The spelling of 139919941 in words is "one hundred thirty-nine million, nine hundred nineteen thousand, nine hundred forty-one".