1216136 has 8 divisors (see below), whose sum is σ = 2280270. Its totient is φ = 608064.

The previous prime is 1216123. The next prime is 1216147. The reversal of 1216136 is 6316121.

It can be written as a sum of positive squares in only one way, i.e., 1060900 + 155236 = 1030^2 + 394^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76001 + ... + 76016.

2^1216136 is an apocalyptic number.

It is an amenable number.

1216136 is a deficient number, since it is larger than the sum of its proper divisors (1064134).

1216136 is a wasteful number, since it uses less digits than its factorization.

1216136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152023 (or 152019 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 1216136 is about 1102.7855639244. The cubic root of 1216136 is about 106.7400449960.

The spelling of 1216136 in words is "one million, two hundred sixteen thousand, one hundred thirty-six".