1402001331 has 16 divisors (see below), whose sum is σ = 1900222464. Its totient is φ = 919268064.

The previous prime is 1402001329. The next prime is 1402001333. The reversal of 1402001331 is 1331002041.

It is an interprime number because it is at equal distance from previous prime (1402001329) and next prime (1402001333).

It is not a de Polignac number, because 1402001331 - 2¹ = 1402001329 is a prime.

It is a super-2 number, since 2×1402001331² = 3931215464251543122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1402001331.

It is not an unprimeable number, because it can be changed into a prime (1402001333) 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 15 ways as a sum of consecutive naturals, for example, 130926 + ... + 141228.

It is an arithmetic number, because the mean of its divisors is an integer number (118763904).

Almost surely, 2^1402001331 is an apocalyptic number.

1402001331 is a deficient number, since it is larger than the sum of its proper divisors (498221133).

1402001331 is a wasteful number, since it uses less digits than its factorization.

1402001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11050.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1402001331 is about 37443.3082272387. The cubic root of 1402001331 is about 1119.2217518121.

Adding to 1402001331 its reverse (1331002041), we get a palindrome (2733003372).

The spelling of 1402001331 in words is "one billion, four hundred two million, one thousand, three hundred thirty-one".