1218526104 has 16 divisors (see below), whose sum is σ = 3046315320. Its totient is φ = 406175360.

The previous prime is 1218526103. The next prime is 1218526117. The reversal of 1218526104 is 4016258121.

It is a super-2 number, since 2×1218526104² = 2969611732258837632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218526103) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25385937 + ... + 25385984.

Almost surely, 2^1218526104 is an apocalyptic number.

It is an amenable number.

1218526104 is an abundant number, since it is smaller than the sum of its proper divisors (1827789216).

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

1218526104 is a wasteful number, since it uses less digits than its factorization.

1218526104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50771930 (or 50771926 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1218526104 is about 34907.3932570165. The cubic root of 1218526104 is about 1068.0992557390.

The spelling of 1218526104 in words is "one billion, two hundred eighteen million, five hundred twenty-six thousand, one hundred four".