1245025513413 has 18 divisors (see below), whose sum is σ = 1976720950022. Its totient is φ = 754560916560.

The previous prime is 1245025513409. The next prime is 1245025513423. The reversal of 1245025513413 is 3143155205421.

1245025513413 is a `hidden beast` number, since 1 + 2 + 4 + 502 + 5 + 5 + 134 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1004358739329 + 240666774084 = 1002177^2 + 490578^2 .

It is not a de Polignac number, because 1245025513413 - 2² = 1245025513409 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245025513423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 571635970 + ... + 571638147.

Almost surely, 2^{1245025513413} is an apocalyptic number.

It is an amenable number.

1245025513413 is a deficient number, since it is larger than the sum of its proper divisors (731695436609).

1245025513413 is a wasteful number, since it uses less digits than its factorization.

1245025513413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143274145 (or 1143274131 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 1245025513413 in words is "one trillion, two hundred forty-five billion, twenty-five million, five hundred thirteen thousand, four hundred thirteen".