139007722 has 32 divisors (see below), whose sum is σ = 249484032. Its totient is φ = 56795904.

The previous prime is 139007707. The next prime is 139007761. The reversal of 139007722 is 227700931.

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, 138928 + ... + 139924.

It is an arithmetic number, because the mean of its divisors is an integer number (7796376).

Almost surely, 2^139007722 is an apocalyptic number.

139007722 is a deficient number, since it is larger than the sum of its proper divisors (110476310).

139007722 is a wasteful number, since it uses less digits than its factorization.

139007722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462.

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

The square root of 139007722 is about 11790.1536037492. The cubic root of 139007722 is about 518.0197390648.

The spelling of 139007722 in words is "one hundred thirty-nine million, seven thousand, seven hundred twenty-two".