139925241 has 9 divisors (see below), whose sum is σ = 202165509. Its totient is φ = 93259836.

The previous prime is 139925197. The next prime is 139925243. The reversal of 139925241 is 142529931.

The square root of 139925241 is 11829.

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

139925241 is a `hidden beast` number, since 1 + 399 + 25 + 241 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 139925241 - 2¹³ = 139917049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139925196 and 139925205.

It is not an unprimeable number, because it can be changed into a prime (139925243) 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, 33516 + ... + 37458.

Almost surely, 2^139925241 is an apocalyptic number.

139925241 is the 11829-th square number.

139925241 is the 5915-th centered octagonal number.

It is an amenable number.

139925241 is a deficient number, since it is larger than the sum of its proper divisors (62240268).

139925241 is an frugal number, since it uses more digits than its factorization.

139925241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7892 (or 3946 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The cubic root of 139925241 is about 519.1569685701.

Multiplying 139925241 by its sum of digits (36), we get a square (5037308676 = 70974²).

The spelling of 139925241 in words is "one hundred thirty-nine million, nine hundred twenty-five thousand, two hundred forty-one".