1361859825 has 24 divisors (see below), whose sum is σ = 2257444800. Its totient is φ = 724442560.

The previous prime is 1361859787. The next prime is 1361859833. The reversal of 1361859825 is 5289581631.

It is a happy number.

It is not a de Polignac number, because 1361859825 - 2¹⁵ = 1361827057 is a prime.

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, 5836 + ... + 52514.

It is an arithmetic number, because the mean of its divisors is an integer number (94060200).

Almost surely, 2^1361859825 is an apocalyptic number.

1361859825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1361859825 is a deficient number, since it is larger than the sum of its proper divisors (895584975).

1361859825 is a wasteful number, since it uses less digits than its factorization.

1361859825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47081 (or 47076 counting only the distinct ones).

The product of its digits is 518400, while the sum is 48.

The square root of 1361859825 is about 36903.3850073405. The cubic root of 1361859825 is about 1108.4364602755.

The spelling of 1361859825 in words is "one billion, three hundred sixty-one million, eight hundred fifty-nine thousand, eight hundred twenty-five".