212249495 has 4 divisors (see below), whose sum is σ = 254699400. Its totient is φ = 169799592.

The previous prime is 212249489. The next prime is 212249503. The reversal of 212249495 is 594942212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212249495 - 2²⁶ = 145140631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21224945 + ... + 21224954.

It is an arithmetic number, because the mean of its divisors is an integer number (63674850).

Almost surely, 2^212249495 is an apocalyptic number.

212249495 is a deficient number, since it is larger than the sum of its proper divisors (42449905).

212249495 is an equidigital number, since it uses as much as digits as its factorization.

212249495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42449904.

The product of its digits is 51840, while the sum is 38.

The square root of 212249495 is about 14568.7849527680. The cubic root of 212249495 is about 596.5070147360.

The spelling of 212249495 in words is "two hundred twelve million, two hundred forty-nine thousand, four hundred ninety-five".