1247252 has 12 divisors (see below), whose sum is σ = 2210880.
Its totient is φ = 615576.
The previous prime is 1247243. The next prime is 1247263. The reversal of 1247252 is 2527421.
It is a happy number.
It is an Ulam number.
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, 1658 + ... + 2289.
It is an arithmetic number, because the mean of its divisors is an integer number (184240).
21247252 is an apocalyptic number.
It is an amenable number.
1247252 is a deficient number, since it is larger than the sum of its proper divisors (963628).
1247252 is a wasteful number, since it uses less digits than its factorization.
1247252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4030 (or 4028 counting only the distinct ones).
The product of its digits is 1120, while the sum is 23.
The square root of 1247252 is about 1116.8043696190.
The cubic root of 1247252 is about 107.6427380977.
The spelling of 1247252 in words is "one million, two hundred forty-seven thousand, two hundred fifty-two".