102040725 has 24 divisors (see below), whose sum is σ = 170614080. Its totient is φ = 53806720.

The previous prime is 102040723. The next prime is 102040733. The reversal of 102040725 is 527040201.

It is not a de Polignac number, because 102040725 - 2¹ = 102040723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102040723) 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, 969 + ... + 14318.

It is an arithmetic number, because the mean of its divisors is an integer number (7108920).

Almost surely, 2^102040725 is an apocalyptic number.

102040725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102040725 is a deficient number, since it is larger than the sum of its proper divisors (68573355).

102040725 is a wasteful number, since it uses less digits than its factorization.

102040725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15389 (or 15384 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 102040725 is about 10101.5209250885. The cubic root of 102040725 is about 467.2950477600.

Adding to 102040725 its reverse (527040201), we get a palindrome (629080926).

The spelling of 102040725 in words is "one hundred two million, forty thousand, seven hundred twenty-five".