1249522716 has 24 divisors (see below), whose sum is σ = 3139826704. Its totient is φ = 384468480.

The previous prime is 1249522711. The next prime is 1249522727. The reversal of 1249522716 is 6172259421.

It is a super-2 number, since 2×1249522716² = 3122614035600033312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249522711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4004725 + ... + 4005036.

Almost surely, 2^1249522716 is an apocalyptic number.

It is an amenable number.

1249522716 is an abundant number, since it is smaller than the sum of its proper divisors (1890303988).

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

1249522716 is a wasteful number, since it uses less digits than its factorization.

1249522716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8009781 (or 8009779 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 1249522716 is about 35348.5885998296. The cubic root of 1249522716 is about 1077.0802239347.

The spelling of 1249522716 in words is "one billion, two hundred forty-nine million, five hundred twenty-two thousand, seven hundred sixteen".