1245623116 has 12 divisors (see below), whose sum is σ = 2308066488. Its totient is φ = 586175552.

The previous prime is 1245623089. The next prime is 1245623123. The reversal of 1245623116 is 6113265421.

It is a happy number.

It is a super-2 number, since 2×1245623116² = 3103153894227098912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9158926 + ... + 9159061.

It is an arithmetic number, because the mean of its divisors is an integer number (192338874).

Almost surely, 2^1245623116 is an apocalyptic number.

It is an amenable number.

1245623116 is a deficient number, since it is larger than the sum of its proper divisors (1062443372).

1245623116 is a wasteful number, since it uses less digits than its factorization.

1245623116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18318008 (or 18318006 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 1245623116 is about 35293.3862926186. The cubic root of 1245623116 is about 1075.9585799159.

Adding to 1245623116 its reverse (6113265421), we get a palindrome (7358888537).

The spelling of 1245623116 in words is "one billion, two hundred forty-five million, six hundred twenty-three thousand, one hundred sixteen".