139224246 has 32 divisors (see below), whose sum is σ = 325002240. Its totient is φ = 38931456.

The previous prime is 139224223. The next prime is 139224251. The reversal of 139224246 is 642422931.

It is a congruent number.

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, 33291 + ... + 37238.

It is an arithmetic number, because the mean of its divisors is an integer number (10156320).

Almost surely, 2^139224246 is an apocalyptic number.

139224246 is an abundant number, since it is smaller than the sum of its proper divisors (185777994).

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

139224246 is a wasteful number, since it uses less digits than its factorization.

139224246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70588.

The product of its digits is 20736, while the sum is 33.

The square root of 139224246 is about 11799.3324387442. The cubic root of 139224246 is about 518.2885623067.

The spelling of 139224246 in words is "one hundred thirty-nine million, two hundred twenty-four thousand, two hundred forty-six".