1273132416 has 64 divisors (see below), whose sum is σ = 3386073600. Its totient is φ = 423836160.

The previous prime is 1273132351. The next prime is 1273132423. The reversal of 1273132416 is 6142313721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1273132416² = 3241732297339994112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397381 + ... + 400571.

It is an arithmetic number, because the mean of its divisors is an integer number (52907400).

Almost surely, 2^1273132416 is an apocalyptic number.

1273132416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1273132416 is an abundant number, since it is smaller than the sum of its proper divisors (2112941184).

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

1273132416 is a wasteful number, since it uses less digits than its factorization.

1273132416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247 (or 4235 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 1273132416 is about 35680.9811524291. The cubic root of 1273132416 is about 1083.8217414517.

The spelling of 1273132416 in words is "one billion, two hundred seventy-three million, one hundred thirty-two thousand, four hundred sixteen".