213142495 has 16 divisors (see below), whose sum is σ = 267284160. Its totient is φ = 162860544.

The previous prime is 213142493. The next prime is 213142499. The reversal of 213142495 is 594241312.

It is a cyclic number.

It is not a de Polignac number, because 213142495 - 2¹ = 213142493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213142493) 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, 148441 + ... + 149869.

It is an arithmetic number, because the mean of its divisors is an integer number (16705260).

Almost surely, 2^213142495 is an apocalyptic number.

213142495 is a deficient number, since it is larger than the sum of its proper divisors (54141665).

213142495 is a wasteful number, since it uses less digits than its factorization.

213142495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754.

The product of its digits is 8640, while the sum is 31.

The square root of 213142495 is about 14599.4005013905. The cubic root of 213142495 is about 597.3424080921.

The spelling of 213142495 in words is "two hundred thirteen million, one hundred forty-two thousand, four hundred ninety-five".