213150247 has 2 divisors, whose sum is σ = 213150248. Its totient is φ = 213150246.

The previous prime is 213150239. The next prime is 213150251. The reversal of 213150247 is 742051312.

It is a happy number.

213150247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213150247 - 2³ = 213150239 is a prime.

It is a super-2 number, since 2×213150247² = 90866055592322018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213156247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106575123 + 106575124.

It is an arithmetic number, because the mean of its divisors is an integer number (106575124).

Almost surely, 2^213150247 is an apocalyptic number.

213150247 is a deficient number, since it is larger than the sum of its proper divisors (1).

213150247 is an equidigital number, since it uses as much as digits as its factorization.

213150247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 213150247 is about 14599.6659893300. The cubic root of 213150247 is about 597.3496497924.

The spelling of 213150247 in words is "two hundred thirteen million, one hundred fifty thousand, two hundred forty-seven".