213140511 has 8 divisors (see below), whose sum is σ = 315763760. Its totient is φ = 142093656.

The previous prime is 213140503. The next prime is 213140519. The reversal of 213140511 is 115041312.

213140511 is a `hidden beast` number, since 2 + 13 + 140 + 511 = 666.

It is an interprime number because it is at equal distance from previous prime (213140503) and next prime (213140519).

It is not a de Polignac number, because 213140511 - 2³ = 213140503 is a prime.

It is a super-2 number, since 2×213140511² = 90857754858682242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213140519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3947020 + ... + 3947073.

It is an arithmetic number, because the mean of its divisors is an integer number (39470470).

Almost surely, 2^213140511 is an apocalyptic number.

213140511 is a deficient number, since it is larger than the sum of its proper divisors (102623249).

213140511 is an equidigital number, since it uses as much as digits as its factorization.

213140511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894102 (or 7894096 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 213140511 is about 14599.3325532368. The cubic root of 213140511 is about 597.3405546669.

Adding to 213140511 its reverse (115041312), we get a palindrome (328181823).

The spelling of 213140511 in words is "two hundred thirteen million, one hundred forty thousand, five hundred eleven".