1258216 has 8 divisors (see below), whose sum is σ = 2359170. Its totient is φ = 629104.

The previous prime is 1258211. The next prime is 1258217. The reversal of 1258216 is 6128521.

It can be written as a sum of positive squares in only one way, i.e., 910116 + 348100 = 954^2 + 590^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1258211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78631 + ... + 78646.

2^1258216 is an apocalyptic number.

It is an amenable number.

1258216 is a deficient number, since it is larger than the sum of its proper divisors (1100954).

1258216 is a wasteful number, since it uses less digits than its factorization.

1258216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157283 (or 157279 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 1258216 is about 1121.7022777903. The cubic root of 1258216 is about 107.9572304357.

The spelling of 1258216 in words is "one million, two hundred fifty-eight thousand, two hundred sixteen".