1218051 has 16 divisors (see below), whose sum is σ = 1821600. Its totient is φ = 804384.

The previous prime is 1218043. The next prime is 1218089. The reversal of 1218051 is 1508121.

It is not a de Polignac number, because 1218051 - 2³ = 1218043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1218251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5205 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (113850).

2^1218051 is an apocalyptic number.

1218051 is a deficient number, since it is larger than the sum of its proper divisors (603549).

1218051 is a wasteful number, since it uses less digits than its factorization.

1218051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1218051 is about 1103.6534782258. The cubic root of 1218051 is about 106.7960420197.

It can be divided in two parts, 12 and 18051, that multiplied together give a palindrome (216612).

The spelling of 1218051 in words is "one million, two hundred eighteen thousand, fifty-one".