812249602 has 8 divisors (see below), whose sum is σ = 1218495996. Its totient is φ = 406084272.

The previous prime is 812249597. The next prime is 812249609. The reversal of 812249602 is 206942218.

It can be written as a sum of positive squares in 2 ways, for example, as 760711561 + 51538041 = 27581^2 + 7179^2 .

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

It is not an unprimeable number, because it can be changed into a prime (812249609) 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, 25068 + ... + 47464.

Almost surely, 2^812249602 is an apocalyptic number.

812249602 is a deficient number, since it is larger than the sum of its proper divisors (406246394).

812249602 is a wasteful number, since it uses less digits than its factorization.

812249602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40532.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 812249602 is about 28499.9930175430. The cubic root of 812249602 is about 933.0319215781.

The spelling of 812249602 in words is "eight hundred twelve million, two hundred forty-nine thousand, six hundred two".