1249325536 has 12 divisors (see below), whose sum is σ = 2459609712. Its totient is φ = 624662752.

The previous prime is 1249325503. The next prime is 1249325537. The reversal of 1249325536 is 6355239421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249325537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19520680 + ... + 19520743.

It is an arithmetic number, because the mean of its divisors is an integer number (204967476).

Almost surely, 2^1249325536 is an apocalyptic number.

1249325536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1249325536 is a deficient number, since it is larger than the sum of its proper divisors (1210284176).

1249325536 is an equidigital number, since it uses as much as digits as its factorization.

1249325536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39041433 (or 39041425 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The square root of 1249325536 is about 35345.7994109625. The cubic root of 1249325536 is about 1077.0235650072.

The spelling of 1249325536 in words is "one billion, two hundred forty-nine million, three hundred twenty-five thousand, five hundred thirty-six".