1275274000 has 480 divisors, whose sum is σ = 4247942400. Its totient is φ = 366912000.

The previous prime is 1275273943. The next prime is 1275274019. The reversal of 1275274000 is 4725721.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1275274000.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 98097994 + ... + 98098006.

It is an arithmetic number, because the mean of its divisors is an integer number (8849880).

Almost surely, 2^1275274000 is an apocalyptic number.

1275274000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1275274000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2123971200).

1275274000 is an abundant number, since it is smaller than the sum of its proper divisors (2972668400).

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

1275274000 is a wasteful number, since it uses less digits than its factorization.

1275274000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 1275274000 is about 35710.9787040344. The cubic root of 1275274000 is about 1084.4291134786.

Adding to 1275274000 its reverse (4725721), we get a palindrome (1279999721).

The spelling of 1275274000 in words is "one billion, two hundred seventy-five million, two hundred seventy-four thousand".