402141651 has 4 divisors (see below), whose sum is σ = 536188872. Its totient is φ = 268094432.

The previous prime is 402141643. The next prime is 402141661. The reversal of 402141651 is 156141204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 402141651 - 2³ = 402141643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402141601) 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, 67023606 + ... + 67023611.

It is an arithmetic number, because the mean of its divisors is an integer number (134047218).

Almost surely, 2^402141651 is an apocalyptic number.

402141651 is a deficient number, since it is larger than the sum of its proper divisors (134047221).

402141651 is a wasteful number, since it uses less digits than its factorization.

402141651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134047220.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 402141651 is about 20053.4697995135. The cubic root of 402141651 is about 738.1189447755.

Adding to 402141651 its reverse (156141204), we get a palindrome (558282855).

The spelling of 402141651 in words is "four hundred two million, one hundred forty-one thousand, six hundred fifty-one".