1225315413 has 36 divisors (see below), whose sum is σ = 2063201868. Its totient is φ = 698705280.

The previous prime is 1225315397. The next prime is 1225315423. The reversal of 1225315413 is 3145135221.

1225315413 is a `hidden beast` number, since 122 + 531 + 5 + 4 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 911919204 + 313396209 = 30198^2 + 17703^2 .

It is not a de Polignac number, because 1225315413 - 2⁴ = 1225315397 is a prime.

It is a super-2 number, since 2×1225315413² = 3002795722670721138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225315423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 227095 + ... + 232427.

It is an arithmetic number, because the mean of its divisors is an integer number (57311163).

Almost surely, 2^1225315413 is an apocalyptic number.

It is an amenable number.

1225315413 is a deficient number, since it is larger than the sum of its proper divisors (837886455).

1225315413 is a wasteful number, since it uses less digits than its factorization.

1225315413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5874 (or 5864 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1225315413 is about 35004.5056099926. The cubic root of 1225315413 is about 1070.0793061433.

The spelling of 1225315413 in words is "one billion, two hundred twenty-five million, three hundred fifteen thousand, four hundred thirteen".