402534101 has 4 divisors (see below), whose sum is σ = 415519104. Its totient is φ = 389549100.

The previous prime is 402534091. The next prime is 402534103. The reversal of 402534101 is 101435204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 402534101 - 2¹⁰ = 402533077 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 (402534103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6492455 + ... + 6492516.

It is an arithmetic number, because the mean of its divisors is an integer number (103879776).

Almost surely, 2^402534101 is an apocalyptic number.

It is an amenable number.

402534101 is a deficient number, since it is larger than the sum of its proper divisors (12985003).

402534101 is a wasteful number, since it uses less digits than its factorization.

402534101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12985002.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 402534101 is about 20063.2525030215. The cubic root of 402534101 is about 738.3589767800.

Adding to 402534101 its reverse (101435204), we get a palindrome (503969305).

The spelling of 402534101 in words is "four hundred two million, five hundred thirty-four thousand, one hundred one".