139488057361 has 9 divisors (see below), whose sum is σ = 140610299529. Its totient is φ = 138374710500.

The previous prime is 139488057349. The next prime is 139488057403. The reversal of 139488057361 is 163750884931.

The square root of 139488057361 is 373481.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 139488057361 - 2²¹ = 139485960209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139488097361) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 48924586 + ... + 48927436.

Almost surely, 2^139488057361 is an apocalyptic number.

139488057361 is the 373481-st square number.

139488057361 is the 186741-st centered octagonal number.

It is an amenable number.

139488057361 is a deficient number, since it is larger than the sum of its proper divisors (1122242168).

139488057361 is an frugal number, since it uses more digits than its factorization.

139488057361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5964 (or 2982 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 139488057361 in words is "one hundred thirty-nine billion, four hundred eighty-eight million, fifty-seven thousand, three hundred sixty-one".