1421002512 has 60 divisors (see below), whose sum is σ = 4061466240. Its totient is φ = 463587264.

The previous prime is 1421002489. The next prime is 1421002519. The reversal of 1421002512 is 2152001241.

1421002512 is a `hidden beast` number, since 142 + 10 + 0 + 2 + 512 = 666.

It is a super-2 number, since 2×1421002512² = 4038496278220620288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1421002519) 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 11 ways as a sum of consecutive naturals, for example, 98212 + ... + 111747.

It is an arithmetic number, because the mean of its divisors is an integer number (67691104).

Almost surely, 2^1421002512 is an apocalyptic number.

1421002512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421002512 is an abundant number, since it is smaller than the sum of its proper divisors (2640463728).

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

1421002512 is a wasteful number, since it uses less digits than its factorization.

1421002512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210020 (or 210011 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1421002512 is about 37696.1869689761. The cubic root of 1421002512 is about 1124.2553127970.

Adding to 1421002512 its reverse (2152001241), we get a palindrome (3573003753).

The spelling of 1421002512 in words is "one billion, four hundred twenty-one million, two thousand, five hundred twelve".