107640025 has 12 divisors (see below), whose sum is σ = 138077100. Its totient is φ = 83142080.

The previous prime is 107640019. The next prime is 107640031. The reversal of 107640025 is 520046701.

It is an interprime number because it is at equal distance from previous prime (107640019) and next prime (107640031).

It can be written as a sum of positive squares in 6 ways, for example, as 5973136 + 101666889 = 2444^2 + 10083^2 .

It is a de Polignac number, because none of the positive numbers 2^k-107640025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 73510 + ... + 74959.

It is an arithmetic number, because the mean of its divisors is an integer number (11506425).

Almost surely, 2^107640025 is an apocalyptic number.

It is an amenable number.

107640025 is a deficient number, since it is larger than the sum of its proper divisors (30437075).

107640025 is a wasteful number, since it uses less digits than its factorization.

107640025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148508 (or 148503 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 107640025 is about 10374.9710842971. The cubic root of 107640025 is about 475.6906297163.

Adding to 107640025 its reverse (520046701), we get a palindrome (627686726).

The spelling of 107640025 in words is "one hundred seven million, six hundred forty thousand, twenty-five".