1206415512 has 64 divisors (see below), whose sum is σ = 3358044000. Its totient is φ = 401311872.

The previous prime is 1206415501. The next prime is 1206415519. The reversal of 1206415512 is 2155146021.

1206415512 is a `hidden beast` number, since 1 + 2 + 0 + 641 + 5 + 5 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206415519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104458 + ... + 115430.

Almost surely, 2^1206415512 is an apocalyptic number.

1206415512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206415512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679022000).

1206415512 is an abundant number, since it is smaller than the sum of its proper divisors (2151628488).

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

1206415512 is a wasteful number, since it uses less digits than its factorization.

1206415512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11497 (or 11487 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1206415512 is about 34733.4926547849. The cubic root of 1206415512 is about 1064.5489540121.

The spelling of 1206415512 in words is "one billion, two hundred six million, four hundred fifteen thousand, five hundred twelve".