1612281552 has 80 divisors (see below), whose sum is σ = 4764790272. Its totient is φ = 460195200.

The previous prime is 1612281551. The next prime is 1612281563. The reversal of 1612281552 is 2551822161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612281551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485883 + ... + 489189.

Almost surely, 2^1612281552 is an apocalyptic number.

1612281552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1612281552 is an abundant number, since it is smaller than the sum of its proper divisors (3152508720).

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

1612281552 is a wasteful number, since it uses less digits than its factorization.

1612281552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776 (or 4770 counting only the distinct ones).

The product of its digits is 9600, while the sum is 33.

The square root of 1612281552 is about 40153.2259227076. The cubic root of 1612281552 is about 1172.5920936691.

The spelling of 1612281552 in words is "one billion, six hundred twelve million, two hundred eighty-one thousand, five hundred fifty-two".