1210512864 has 192 divisors, whose sum is σ = 3609059328. Its totient is φ = 352051200.

The previous prime is 1210512859. The next prime is 1210512883. The reversal of 1210512864 is 4682150121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3160417 + ... + 3160799.

It is an arithmetic number, because the mean of its divisors is an integer number (18797184).

Almost surely, 2^1210512864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210512864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1804529664).

1210512864 is an abundant number, since it is smaller than the sum of its proper divisors (2398546464).

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

1210512864 is a wasteful number, since it uses less digits than its factorization.

1210512864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1210512864 is about 34792.4253825456. The cubic root of 1210512864 is about 1065.7527689513.

Adding to 1210512864 its reverse (4682150121), we get a palindrome (5892662985).

The spelling of 1210512864 in words is "one billion, two hundred ten million, five hundred twelve thousand, eight hundred sixty-four".