139954580 has 48 divisors (see below), whose sum is σ = 305665920. Its totient is φ = 53762688.

The previous prime is 139954559. The next prime is 139954597. The reversal of 139954580 is 85459931.

It is a happy number.

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, 131129 + ... + 132191.

It is an arithmetic number, because the mean of its divisors is an integer number (6368040).

Almost surely, 2^139954580 is an apocalyptic number.

139954580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139954580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152832960).

139954580 is an abundant number, since it is smaller than the sum of its proper divisors (165711340).

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

139954580 is a wasteful number, since it uses less digits than its factorization.

139954580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 139954580 is about 11830.2400651889. The cubic root of 139954580 is about 519.1932509967.

The spelling of 139954580 in words is "one hundred thirty-nine million, nine hundred fifty-four thousand, five hundred eighty".