1274181216 has 96 divisors (see below), whose sum is σ = 4170071808. Its totient is φ = 330954240.

The previous prime is 1274181199. The next prime is 1274181281. The reversal of 1274181216 is 6121814721.

1274181216 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78795 + ... + 93578.

It is an arithmetic number, because the mean of its divisors is an integer number (43438248).

Almost surely, 2^1274181216 is an apocalyptic number.

1274181216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1274181216 is an abundant number, since it is smaller than the sum of its proper divisors (2895890592).

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

1274181216 is a wasteful number, since it uses less digits than its factorization.

1274181216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172404 (or 172396 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 1274181216 is about 35695.6750321380. The cubic root of 1274181216 is about 1084.1192753745.

Adding to 1274181216 its reverse (6121814721), we get a palindrome (7395995937).

The spelling of 1274181216 in words is "one billion, two hundred seventy-four million, one hundred eighty-one thousand, two hundred sixteen".