139144722 has 32 divisors (see below), whose sum is σ = 285030144. Its totient is φ = 45264000.

The previous prime is 139144717. The next prime is 139144723. The reversal of 139144722 is 227441931.

It is a super-2 number, since 2×139144722² = 38722507320914568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139144723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169072 + ... + 169892.

It is an arithmetic number, because the mean of its divisors is an integer number (8907192).

Almost surely, 2^139144722 is an apocalyptic number.

139144722 is an abundant number, since it is smaller than the sum of its proper divisors (145885422).

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

139144722 is a wasteful number, since it uses less digits than its factorization.

139144722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474.

The product of its digits is 12096, while the sum is 33.

The square root of 139144722 is about 11795.9621057377. The cubic root of 139144722 is about 518.1898624734.

The spelling of 139144722 in words is "one hundred thirty-nine million, one hundred forty-four thousand, seven hundred twenty-two".