1263126325 has 12 divisors (see below), whose sum is σ = 1576654048. Its totient is φ = 1003806000.

The previous prime is 1263126323. The next prime is 1263126413. The reversal of 1263126325 is 5236213621.

It is a happy number.

It is not a de Polignac number, because 1263126325 - 2¹ = 1263126323 is a prime.

It is a super-2 number, since 2×1263126325² = 3190976225816011250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) 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 (1263126323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163527 + ... + 171076.

Almost surely, 2^1263126325 is an apocalyptic number.

It is an amenable number.

1263126325 is a deficient number, since it is larger than the sum of its proper divisors (313527723).

1263126325 is a wasteful number, since it uses less digits than its factorization.

1263126325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334764 (or 334759 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 1263126325 is about 35540.4885306885. The cubic root of 1263126325 is about 1080.9748642279.

Adding to 1263126325 its reverse (5236213621), we get a palindrome (6499339946).

The spelling of 1263126325 in words is "one billion, two hundred sixty-three million, one hundred twenty-six thousand, three hundred twenty-five".