1272848625 has 24 divisors (see below), whose sum is σ = 2294523816. Its totient is φ = 678852000.

The previous prime is 1272848597. The next prime is 1272848651. The reversal of 1272848625 is 5268482721.

1272848625 is a `hidden beast` number, since 12 + 7 + 2 + 8 + 4 + 8 + 625 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47568609 + 1225280016 = 6897^2 + 35004^2 .

It is not a de Polignac number, because 1272848625 - 2⁵ = 1272848593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564586 + ... + 566835.

It is an arithmetic number, because the mean of its divisors is an integer number (95605159).

Almost surely, 2^1272848625 is an apocalyptic number.

1272848625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1272848625 is a deficient number, since it is larger than the sum of its proper divisors (1021675191).

1272848625 is a wasteful number, since it uses less digits than its factorization.

1272848625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131442 (or 1131429 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 1272848625 is about 35677.0041483306. The cubic root of 1272848625 is about 1083.7412047354.

The spelling of 1272848625 in words is "one billion, two hundred seventy-two million, eight hundred forty-eight thousand, six hundred twenty-five".