1002112551 has 48 divisors (see below), whose sum is σ = 1642767360. Its totient is φ = 583277760.

The previous prime is 1002112513. The next prime is 1002112613. The reversal of 1002112551 is 1552112001.

1002112551 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 112 + 551 = 666.

It is not a de Polignac number, because 1002112551 - 2¹³ = 1002104359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002112351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 287646 + ... + 291108.

It is an arithmetic number, because the mean of its divisors is an integer number (34224320).

Almost surely, 2^1002112551 is an apocalyptic number.

1002112551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002112551 is a deficient number, since it is larger than the sum of its proper divisors (640654809).

1002112551 is a wasteful number, since it uses less digits than its factorization.

1002112551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1002112551 is about 31656.1613434099. The cubic root of 1002112551 is about 1000.7036883732.

Adding to 1002112551 its reverse (1552112001), we get a palindrome (2554224552).

The spelling of 1002112551 in words is "one billion, two million, one hundred twelve thousand, five hundred fifty-one".