139468425 has 24 divisors (see below), whose sum is σ = 244154016. Its totient is φ = 70007040.

The previous prime is 139468423. The next prime is 139468447. The reversal of 139468425 is 524864931.

It is not a de Polignac number, because 139468425 - 2¹ = 139468423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139468421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53419 + ... + 55968.

It is an arithmetic number, because the mean of its divisors is an integer number (10173084).

Almost surely, 2^139468425 is an apocalyptic number.

139468425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139468425 is a deficient number, since it is larger than the sum of its proper divisors (104685591).

139468425 is a wasteful number, since it uses less digits than its factorization.

139468425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109417 (or 109412 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 139468425 is about 11809.6750590353. The cubic root of 139468425 is about 518.5913861612.

The spelling of 139468425 in words is "one hundred thirty-nine million, four hundred sixty-eight thousand, four hundred twenty-five".