402132155 has 16 divisors (see below), whose sum is σ = 498970368. Its totient is φ = 310800000.

The previous prime is 402132151. The next prime is 402132163. The reversal of 402132155 is 551231204.

It is not a de Polignac number, because 402132155 - 2² = 402132151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402132155.

It is not an unprimeable number, because it can be changed into a prime (402132151) 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 15 ways as a sum of consecutive naturals, for example, 106805 + ... + 110505.

It is an arithmetic number, because the mean of its divisors is an integer number (31185648).

Almost surely, 2^402132155 is an apocalyptic number.

402132155 is a deficient number, since it is larger than the sum of its proper divisors (96838213).

402132155 is a wasteful number, since it uses less digits than its factorization.

402132155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4438.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 402132155 is about 20053.2330311100. The cubic root of 402132155 is about 738.1131348553.

Adding to 402132155 its reverse (551231204), we get a palindrome (953363359).

The spelling of 402132155 in words is "four hundred two million, one hundred thirty-two thousand, one hundred fifty-five".