107155745 has 4 divisors (see below), whose sum is σ = 128586900. Its totient is φ = 85724592.

The previous prime is 107155721. The next prime is 107155793. The reversal of 107155745 is 547551701.

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 37466641 + 69689104 = 6121^2 + 8348^2 .

It is a cyclic number.

It is not a de Polignac number, because 107155745 - 2¹⁰ = 107154721 is a prime.

It is a super-2 number, since 2×107155745² = 22964707373010050, which contains 22 as substring.

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, 10715570 + ... + 10715579.

It is an arithmetic number, because the mean of its divisors is an integer number (32146725).

Almost surely, 2^107155745 is an apocalyptic number.

It is an amenable number.

107155745 is a deficient number, since it is larger than the sum of its proper divisors (21431155).

107155745 is an equidigital number, since it uses as much as digits as its factorization.

107155745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21431154.

The product of its (nonzero) digits is 24500, while the sum is 35.

The square root of 107155745 is about 10351.6059140599. The cubic root of 107155745 is about 474.9761687028.

The spelling of 107155745 in words is "one hundred seven million, one hundred fifty-five thousand, seven hundred forty-five".