213480497 has 4 divisors (see below), whose sum is σ = 213531120. Its totient is φ = 213429876.

The previous prime is 213480493. The next prime is 213480517. The reversal of 213480497 is 794084312.

213480497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213480497 - 2² = 213480493 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 213480497.

It is not an unprimeable number, because it can be changed into a prime (213480493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18347 + ... + 27632.

It is an arithmetic number, because the mean of its divisors is an integer number (53382780).

Almost surely, 2^213480497 is an apocalyptic number.

It is an amenable number.

213480497 is a deficient number, since it is larger than the sum of its proper divisors (50623).

213480497 is an equidigital number, since it uses as much as digits as its factorization.

213480497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50622.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 213480497 is about 14610.9718020397. The cubic root of 213480497 is about 597.6579971170.

The spelling of 213480497 in words is "two hundred thirteen million, four hundred eighty thousand, four hundred ninety-seven".