1249974495 has 96 divisors (see below), whose sum is σ = 2729825280. Its totient is φ = 513976320.

The previous prime is 1249974463. The next prime is 1249974499. The reversal of 1249974495 is 5944799421.

It is not a de Polignac number, because 1249974495 - 2⁵ = 1249974463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249974499) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 334246 + ... + 337964.

It is an arithmetic number, because the mean of its divisors is an integer number (28435680).

Almost surely, 2^1249974495 is an apocalyptic number.

1249974495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1249974495 is an abundant number, since it is smaller than the sum of its proper divisors (1479850785).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249974495 is a wasteful number, since it uses less digits than its factorization.

1249974495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845 (or 3842 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 1249974495 is about 35354.9783623184. The cubic root of 1249974495 is about 1077.2100184519.

The spelling of 1249974495 in words is "one billion, two hundred forty-nine million, nine hundred seventy-four thousand, four hundred ninety-five".