138146025 has 12 divisors (see below), whose sum is σ = 228401552. Its totient is φ = 73677840.

The previous prime is 138146011. The next prime is 138146033. The reversal of 138146025 is 520641831.

It is not a de Polignac number, because 138146025 - 2¹⁵ = 138113257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138145983 and 138146001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 920899 + ... + 921048.

Almost surely, 2^138146025 is an apocalyptic number.

138146025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138146025 is a deficient number, since it is larger than the sum of its proper divisors (90255527).

138146025 is a wasteful number, since it uses less digits than its factorization.

138146025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841960 (or 1841955 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 138146025 is about 11753.5537179187. The cubic root of 138146025 is about 516.9471329600.

Adding to 138146025 its reverse (520641831), we get a palindrome (658787856).

The spelling of 138146025 in words is "one hundred thirty-eight million, one hundred forty-six thousand, twenty-five".