2015102545 has 4 divisors (see below), whose sum is σ = 2418123060. Its totient is φ = 1612082032.

The previous prime is 2015102521. The next prime is 2015102567. The reversal of 2015102545 is 5452015102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5452015102 = 2 ⋅2726007551.

It can be written as a sum of positive squares in 2 ways, for example, as 1602240784 + 412861761 = 40028^2 + 20319^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015102545 - 2⁷ = 2015102417 is a prime.

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, 201510250 + ... + 201510259.

It is an arithmetic number, because the mean of its divisors is an integer number (604530765).

Almost surely, 2^2015102545 is an apocalyptic number.

It is an amenable number.

2015102545 is a deficient number, since it is larger than the sum of its proper divisors (403020515).

2015102545 is an equidigital number, since it uses as much as digits as its factorization.

2015102545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403020514.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2015102545 is about 44889.8935730527. The cubic root of 2015102545 is about 1263.0844364005.

Adding to 2015102545 its reverse (5452015102), we get a palindrome (7467117647).

The spelling of 2015102545 in words is "two billion, fifteen million, one hundred two thousand, five hundred forty-five".