1218748201 has 8 divisors (see below), whose sum is σ = 1334346624. Its totient is φ = 1103950320.

The previous prime is 1218748189. The next prime is 1218748231. The reversal of 1218748201 is 1028478121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1218748201 - 2⁵ = 1218748169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1218748231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196945 + ... + 203038.

It is an arithmetic number, because the mean of its divisors is an integer number (166793328).

Almost surely, 2^1218748201 is an apocalyptic number.

1218748201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1218748201 is a deficient number, since it is larger than the sum of its proper divisors (115598423).

1218748201 is a wasteful number, since it uses less digits than its factorization.

1218748201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400271.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 1218748201 is about 34910.5743435997. The cubic root of 1218748201 is about 1068.1641448507.

The spelling of 1218748201 in words is "one billion, two hundred eighteen million, seven hundred forty-eight thousand, two hundred one".