1216475 has 24 divisors (see below), whose sum is σ = 1718640. Its totient is φ = 846720.

The previous prime is 1216459. The next prime is 1216489. The reversal of 1216475 is 5746121.

It is not a de Polignac number, because 1216475 - 2⁴ = 1216459 is a prime.

It is a super-2 number, since 2×1216475² = 2959622851250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6077 + ... + 6273.

It is an arithmetic number, because the mean of its divisors is an integer number (71610).

2^1216475 is an apocalyptic number.

1216475 is a deficient number, since it is larger than the sum of its proper divisors (502165).

1216475 is a wasteful number, since it uses less digits than its factorization.

1216475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 234 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 1216475 is about 1102.9392549003. The cubic root of 1216475 is about 106.7499620649.

It can be divided in two parts, 1216 and 475, that multiplied together give a square (577600 = 760²).

The spelling of 1216475 in words is "one million, two hundred sixteen thousand, four hundred seventy-five".