213341540 has 24 divisors (see below), whose sum is σ = 453418560. Its totient is φ = 84307808.

The previous prime is 213341539. The next prime is 213341567. The reversal of 213341540 is 45143312.

It is a super-2 number, since 2×213341540² = 91029225379143200, which contains 22 as substring.

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, 62600 + ... + 65919.

It is an arithmetic number, because the mean of its divisors is an integer number (18892440).

Almost surely, 2^213341540 is an apocalyptic number.

213341540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213341540 is an abundant number, since it is smaller than the sum of its proper divisors (240077020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213341540 is a wasteful number, since it uses less digits than its factorization.

213341540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128611 (or 128609 counting only the distinct ones).

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

The square root of 213341540 is about 14606.2158001311. The cubic root of 213341540 is about 597.5282947333.

Adding to 213341540 its reverse (45143312), we get a palindrome (258484852).

The spelling of 213341540 in words is "two hundred thirteen million, three hundred forty-one thousand, five hundred forty".