1249348525 has 6 divisors (see below), whose sum is σ = 1549192202. Its totient is φ = 999478800.

The previous prime is 1249348519. The next prime is 1249348537. The reversal of 1249348525 is 5258439421.

It can be written as a sum of positive squares in 3 ways, for example, as 363512356 + 885836169 = 19066^2 + 29763^2 .

It is not a de Polignac number, because 1249348525 - 2⁵ = 1249348493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24986946 + ... + 24986995.

Almost surely, 2^1249348525 is an apocalyptic number.

It is an amenable number.

1249348525 is a deficient number, since it is larger than the sum of its proper divisors (299843677).

1249348525 is an equidigital number, since it uses as much as digits as its factorization.

1249348525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49973951 (or 49973946 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 1249348525 is about 35346.1246107689. The cubic root of 1249348525 is about 1077.0301711165.

The spelling of 1249348525 in words is "one billion, two hundred forty-nine million, three hundred forty-eight thousand, five hundred twenty-five".