812242293 has 8 divisors (see below), whose sum is σ = 1083454848. Its totient is φ = 541262304.

The previous prime is 812242279. The next prime is 812242307. The reversal of 812242293 is 392242218.

It is an interprime number because it is at equal distance from previous prime (812242279) and next prime (812242307).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 812242293 - 2¹⁸ = 811980149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812242993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49821 + ... + 64082.

It is an arithmetic number, because the mean of its divisors is an integer number (135431856).

Almost surely, 2^812242293 is an apocalyptic number.

It is an amenable number.

812242293 is a deficient number, since it is larger than the sum of its proper divisors (271212555).

812242293 is a wasteful number, since it uses less digits than its factorization.

812242293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116283.

The product of its digits is 13824, while the sum is 33.

The square root of 812242293 is about 28499.8647891529. The cubic root of 812242293 is about 933.0291229512.

The spelling of 812242293 in words is "eight hundred twelve million, two hundred forty-two thousand, two hundred ninety-three".