1245615516 has 48 divisors (see below), whose sum is σ = 3231597600. Its totient is φ = 414919296.

The previous prime is 1245615467. The next prime is 1245615533. The reversal of 1245615516 is 6155165421.

1245615516 is a `hidden beast` number, since 1 + 2 + 45 + 61 + 551 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203590 + ... + 209618.

It is an arithmetic number, because the mean of its divisors is an integer number (67324950).

Almost surely, 2^1245615516 is an apocalyptic number.

It is an amenable number.

1245615516 is an abundant number, since it is smaller than the sum of its proper divisors (1985982084).

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

1245615516 is a wasteful number, since it uses less digits than its factorization.

1245615516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7955 (or 7947 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 1245615516 is about 35293.2786235566. The cubic root of 1245615516 is about 1075.9563916398.

It can be divided in two parts, 12456 and 15516, that added together give a palindrome (27972).

The spelling of 1245615516 in words is "one billion, two hundred forty-five million, six hundred fifteen thousand, five hundred sixteen".