402313145 has 8 divisors (see below), whose sum is σ = 519912456. Its totient is φ = 297092736.

The previous prime is 402313139. The next prime is 402313189. The reversal of 402313145 is 541313204.

It can be written as a sum of positive squares in 4 ways, for example, as 1352569 + 400960576 = 1163^2 + 20024^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402313145 - 2⁴ = 402313129 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 402313145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3094652 + ... + 3094781.

It is an arithmetic number, because the mean of its divisors is an integer number (64989057).

Almost surely, 2^402313145 is an apocalyptic number.

It is an amenable number.

402313145 is a deficient number, since it is larger than the sum of its proper divisors (117599311).

402313145 is a wasteful number, since it uses less digits than its factorization.

402313145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6189451.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 402313145 is about 20057.7452621176. The cubic root of 402313145 is about 738.2238538960.

Adding to 402313145 its reverse (541313204), we get a palindrome (943626349).

The spelling of 402313145 in words is "four hundred two million, three hundred thirteen thousand, one hundred forty-five".