712213146 has 48 divisors (see below), whose sum is σ = 1607229000. Its totient is φ = 227654784.

The previous prime is 712213097. The next prime is 712213207. The reversal of 712213146 is 641312217.

It can be written as a sum of positive squares in 4 ways, for example, as 341843121 + 370370025 = 18489^2 + 19245^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73200 + ... + 82356.

Almost surely, 2^712213146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712213146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803614500).

712213146 is an abundant number, since it is smaller than the sum of its proper divisors (895015854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

712213146 is a wasteful number, since it uses less digits than its factorization.

712213146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9343 (or 9340 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 712213146 is about 26687.3218214192. The cubic root of 712213146 is about 893.0381153353.

The spelling of 712213146 in words is "seven hundred twelve million, two hundred thirteen thousand, one hundred forty-six".