1402144121 has 16 divisors (see below), whose sum is σ = 1687848960. Its totient is φ = 1137868560.

The previous prime is 1402144103. The next prime is 1402144141. The reversal of 1402144121 is 1214412041.

It is a cyclic number.

It is not a de Polignac number, because 1402144121 - 2⁶ = 1402144057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1402144093 and 1402144102.

It is not an unprimeable number, because it can be changed into a prime (1402144141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353270 + ... + 357216.

It is an arithmetic number, because the mean of its divisors is an integer number (105490560).

Almost surely, 2^1402144121 is an apocalyptic number.

It is an amenable number.

1402144121 is a deficient number, since it is larger than the sum of its proper divisors (285704839).

1402144121 is a wasteful number, since it uses less digits than its factorization.

1402144121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1402144121 is about 37445.2149279451. The cubic root of 1402144121 is about 1119.2597470801.

Adding to 1402144121 its reverse (1214412041), we get a palindrome (2616556162).

The spelling of 1402144121 in words is "one billion, four hundred two million, one hundred forty-four thousand, one hundred twenty-one".