1212874752 has 136 divisors (see below), whose sum is σ = 3355417600. Its totient is φ = 389283840.

The previous prime is 1212874717. The next prime is 1212874759. The reversal of 1212874752 is 2574782121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212874752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212874759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6094749 + ... + 6094947.

Almost surely, 2^1212874752 is an apocalyptic number.

1212874752 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 1212874752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677708800).

1212874752 is an abundant number, since it is smaller than the sum of its proper divisors (2142542848).

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

1212874752 is an frugal number, since it uses more digits than its factorization.

1212874752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 235 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 1212874752 is about 34826.3514023505. The cubic root of 1212874752 is about 1066.4454652423.

The spelling of 1212874752 in words is "one billion, two hundred twelve million, eight hundred seventy-four thousand, seven hundred fifty-two".