212749395 has 16 divisors (see below), whose sum is σ = 345980832. Its totient is φ = 111605760.

The previous prime is 212749387. The next prime is 212749399. The reversal of 212749395 is 593947212.

212749395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212749395 - 2³ = 212749387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212749399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115342 + ... + 117171.

It is an arithmetic number, because the mean of its divisors is an integer number (21623802).

Almost surely, 2^212749395 is an apocalyptic number.

212749395 is a deficient number, since it is larger than the sum of its proper divisors (133231437).

212749395 is a wasteful number, since it uses less digits than its factorization.

212749395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232582.

The product of its digits is 136080, while the sum is 42.

The square root of 212749395 is about 14585.9314066672. The cubic root of 212749395 is about 596.9749546884.

The spelling of 212749395 in words is "two hundred twelve million, seven hundred forty-nine thousand, three hundred ninety-five".