139021122 has 8 divisors (see below), whose sum is σ = 278042256. Its totient is φ = 46340372.

The previous prime is 139021111. The next prime is 139021123. The reversal of 139021122 is 221120931.

It is a sphenic number, since it is the product of 3 distinct primes.

139021122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (139021123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11585088 + ... + 11585099.

It is an arithmetic number, because the mean of its divisors is an integer number (34755282).

Almost surely, 2^139021122 is an apocalyptic number.

139021122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

139021122 is a wasteful number, since it uses less digits than its factorization.

139021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23170192.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 139021122 is about 11790.7218608531. The cubic root of 139021122 is about 518.0363838032.

The spelling of 139021122 in words is "one hundred thirty-nine million, twenty-one thousand, one hundred twenty-two".