139967622 has 32 divisors (see below), whose sum is σ = 311794560. Its totient is φ = 46542600.

The previous prime is 139967621. The next prime is 139967629. The reversal of 139967622 is 226769931.

It is a happy number.

139967622 is a `hidden beast` number, since 13 + 9 + 9 + 6 + 7 + 622 = 666.

139967622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139967621) 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, 20997 + ... + 26847.

It is an arithmetic number, because the mean of its divisors is an integer number (9743580).

Almost surely, 2^139967622 is an apocalyptic number.

139967622 is an abundant number, since it is smaller than the sum of its proper divisors (171826938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139967622 is a wasteful number, since it uses less digits than its factorization.

139967622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305 (or 6299 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 139967622 is about 11830.7912668595. The cubic root of 139967622 is about 519.2093779146.

The spelling of 139967622 in words is "one hundred thirty-nine million, nine hundred sixty-seven thousand, six hundred twenty-two".