1216063254 has 16 divisors (see below), whose sum is σ = 2779573248. Its totient is φ = 347446632.

The previous prime is 1216063241. The next prime is 1216063267. The reversal of 1216063254 is 4523606121.

It is an interprime number because it is at equal distance from previous prime (1216063241) and next prime (1216063267).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14476902 + ... + 14476985.

It is an arithmetic number, because the mean of its divisors is an integer number (173723328).

Almost surely, 2^1216063254 is an apocalyptic number.

1216063254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1216063254 is an abundant number, since it is smaller than the sum of its proper divisors (1563509994).

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

1216063254 is a wasteful number, since it uses less digits than its factorization.

1216063254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28953899.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1216063254 is about 34872.0985029579. The cubic root of 1216063254 is about 1067.3791665229.

Adding to 1216063254 its reverse (4523606121), we get a palindrome (5739669375).

The spelling of 1216063254 in words is "one billion, two hundred sixteen million, sixty-three thousand, two hundred fifty-four".