1270145000 has 80 divisors (see below), whose sum is σ = 3032732340. Its totient is φ = 498368000.

The previous prime is 1270144999. The next prime is 1270145029. The reversal of 1270145000 is 5410721.

It can be written as a sum of positive squares in 10 ways, for example, as 1503076 + 1268641924 = 1226^2 + 35618^2 .

It is a super-2 number, since 2×1270145000² = 3226536642050000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 262604 + ... + 267396.

Almost surely, 2^1270145000 is an apocalyptic number.

1270145000 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 1270145000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516366170).

1270145000 is an abundant number, since it is smaller than the sum of its proper divisors (1762587340).

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

1270145000 is an equidigital number, since it uses as much as digits as its factorization.

1270145000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872 (or 4853 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1270145000 is about 35639.0937034039. The cubic root of 1270145000 is about 1082.9733452162.

Adding to 1270145000 its reverse (5410721), we get a palindrome (1275555721).

The spelling of 1270145000 in words is "one billion, two hundred seventy million, one hundred forty-five thousand".