1282612825 has 72 divisors (see below), whose sum is σ = 1833150528. Its totient is φ = 887927040.

The previous prime is 1282612823. The next prime is 1282612829. The reversal of 1282612825 is 5282162821.

It is not a de Polignac number, because 1282612825 - 2¹ = 1282612823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1282612823) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6510627 + ... + 6510823.

It is an arithmetic number, because the mean of its divisors is an integer number (25460424).

Almost surely, 2^1282612825 is an apocalyptic number.

It is an amenable number.

1282612825 is a deficient number, since it is larger than the sum of its proper divisors (550537703).

1282612825 is a wasteful number, since it uses less digits than its factorization.

1282612825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 305 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 1282612825 is about 35813.5843640371. The cubic root of 1282612825 is about 1086.5053255869.

It can be divided in two parts, 12826 and 12825, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 1282612825 in words is "one billion, two hundred eighty-two million, six hundred twelve thousand, eight hundred twenty-five".