1275365245 has 32 divisors (see below), whose sum is σ = 2020329216. Its totient is φ = 748262400.

The previous prime is 1275365243. The next prime is 1275365263. The reversal of 1275365245 is 5425635721.

It is not a de Polignac number, because 1275365245 - 2¹ = 1275365243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1275365198 and 1275365207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275365243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90886 + ... + 103975.

It is an arithmetic number, because the mean of its divisors is an integer number (63135288).

Almost surely, 2^1275365245 is an apocalyptic number.

It is an amenable number.

1275365245 is a deficient number, since it is larger than the sum of its proper divisors (744963971).

1275365245 is a wasteful number, since it uses less digits than its factorization.

1275365245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194901.

The product of its digits is 252000, while the sum is 40.

The square root of 1275365245 is about 35712.2562294795. The cubic root of 1275365245 is about 1084.4549762538.

The spelling of 1275365245 in words is "one billion, two hundred seventy-five million, three hundred sixty-five thousand, two hundred forty-five".