1402121999 has 8 divisors (see below), whose sum is σ = 1407988560. Its totient is φ = 1396264896.

The previous prime is 1402121969. The next prime is 1402122031. The reversal of 1402121999 is 9991212041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1402121999 - 2²⁰ = 1401073423 is a prime.

It is a super-2 number, since 2×1402121999² = 3931892200159512002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402121969) 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 7 ways as a sum of consecutive naturals, for example, 492809 + ... + 495645.

It is an arithmetic number, because the mean of its divisors is an integer number (175998570).

Almost surely, 2^1402121999 is an apocalyptic number.

1402121999 is a deficient number, since it is larger than the sum of its proper divisors (5866561).

1402121999 is a wasteful number, since it uses less digits than its factorization.

1402121999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1402121999 is about 37444.9195352320. The cubic root of 1402121999 is about 1119.2538607631.

The spelling of 1402121999 in words is "one billion, four hundred two million, one hundred twenty-one thousand, nine hundred ninety-nine".