139070722 has 20 divisors (see below), whose sum is σ = 243367686. Its totient is φ = 59599680.

The previous prime is 139070717. The next prime is 139070773. The reversal of 139070722 is 227070931.

It can be written as a sum of positive squares in only one way, i.e., 85766121 + 53304601 = 9261^2 + 7301^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9679 + ... + 19282.

Almost surely, 2^139070722 is an apocalyptic number.

139070722 is a deficient number, since it is larger than the sum of its proper divisors (104296964).

139070722 is an frugal number, since it uses more digits than its factorization.

139070722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28991 (or 28970 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 139070722 is about 11792.8250220208. The cubic root of 139070722 is about 518.0979848728.

The spelling of 139070722 in words is "one hundred thirty-nine million, seventy thousand, seven hundred twenty-two".