139967268 has 48 divisors (see below), whose sum is σ = 373935744. Its totient is φ = 39916800.

The previous prime is 139967251. The next prime is 139967309. The reversal of 139967268 is 862769931.

139967268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139967268² = 39181672222767648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 139967268.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57696 + ... + 60072.

It is an arithmetic number, because the mean of its divisors is an integer number (7790328).

Almost surely, 2^139967268 is an apocalyptic number.

It is an amenable number.

139967268 is an abundant number, since it is smaller than the sum of its proper divisors (233968476).

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

139967268 is a wasteful number, since it uses less digits than its factorization.

139967268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092 (or 3090 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 139967268 is about 11830.7763058897. The cubic root of 139967268 is about 519.2089401936.

The spelling of 139967268 in words is "one hundred thirty-nine million, nine hundred sixty-seven thousand, two hundred sixty-eight".