107251945 has 4 divisors (see below), whose sum is σ = 128702340. Its totient is φ = 85801552.

The previous prime is 107251939. The next prime is 107251973. The reversal of 107251945 is 549152701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69956496 + 37295449 = 8364^2 + 6107^2 .

It is a cyclic number.

It is not a de Polignac number, because 107251945 - 2⁷ = 107251817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 107251945.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10725190 + ... + 10725199.

It is an arithmetic number, because the mean of its divisors is an integer number (32175585).

Almost surely, 2^107251945 is an apocalyptic number.

It is an amenable number.

107251945 is a deficient number, since it is larger than the sum of its proper divisors (21450395).

107251945 is an equidigital number, since it uses as much as digits as its factorization.

107251945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21450394.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 107251945 is about 10356.2514936631. The cubic root of 107251945 is about 475.1182641813.

The spelling of 107251945 in words is "one hundred seven million, two hundred fifty-one thousand, nine hundred forty-five".