402142283 has 2 divisors, whose sum is σ = 402142284. Its totient is φ = 402142282.

The previous prime is 402142271. The next prime is 402142313. The reversal of 402142283 is 382241204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402142283 - 2⁴ = 402142267 is a prime.

It is not a weakly prime, because it can be changed into another prime (402142243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201071141 + 201071142.

It is an arithmetic number, because the mean of its divisors is an integer number (201071142).

Almost surely, 2^402142283 is an apocalyptic number.

402142283 is a deficient number, since it is larger than the sum of its proper divisors (1).

402142283 is an equidigital number, since it uses as much as digits as its factorization.

402142283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 402142283 is about 20053.4855573788. The cubic root of 402142283 is about 738.1193314477.

Adding to 402142283 its reverse (382241204), we get a palindrome (784383487).

The spelling of 402142283 in words is "four hundred two million, one hundred forty-two thousand, two hundred eighty-three".