1402400143 has 2 divisors, whose sum is σ = 1402400144. Its totient is φ = 1402400142.

The previous prime is 1402400117. The next prime is 1402400161. The reversal of 1402400143 is 3410042041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1402400143 - 2¹³ = 1402391951 is a prime.

It is a super-2 number, since 2×1402400143² = 3933452322172840898, 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 1402400143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402400243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701200071 + 701200072.

It is an arithmetic number, because the mean of its divisors is an integer number (701200072).

Almost surely, 2^1402400143 is an apocalyptic number.

1402400143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402400143 is an equidigital number, since it uses as much as digits as its factorization.

1402400143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1402400143 is about 37448.6333929557. The cubic root of 1402400143 is about 1119.3278660120.

Adding to 1402400143 its reverse (3410042041), we get a palindrome (4812442184).

The spelling of 1402400143 in words is "one billion, four hundred two million, four hundred thousand, one hundred forty-three".