402164141 has 4 divisors (see below), whose sum is σ = 416031900. Its totient is φ = 388296384.

The previous prime is 402164129. The next prime is 402164153. The reversal of 402164141 is 141461204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (402164129) and next prime (402164153).

It can be written as a sum of positive squares in 2 ways, for example, as 211586116 + 190578025 = 14546^2 + 13805^2 .

It is a cyclic number.

It is not a de Polignac number, because 402164141 - 2¹⁰ = 402163117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402164341) 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 3 ways as a sum of consecutive naturals, for example, 6933836 + ... + 6933893.

It is an arithmetic number, because the mean of its divisors is an integer number (104007975).

Almost surely, 2^402164141 is an apocalyptic number.

It is an amenable number.

402164141 is a deficient number, since it is larger than the sum of its proper divisors (13867759).

402164141 is a wasteful number, since it uses less digits than its factorization.

402164141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13867758.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 402164141 is about 20054.0305425119. The cubic root of 402164141 is about 738.1327044259.

The spelling of 402164141 in words is "four hundred two million, one hundred sixty-four thousand, one hundred forty-one".