1273066140 has 48 divisors (see below), whose sum is σ = 3570503328. Its totient is φ = 338920704.

The previous prime is 1273066073. The next prime is 1273066159. The reversal of 1273066140 is 416603721.

1273066140 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1273066098 and 1273066107.

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, 19474 + ... + 54086.

It is an arithmetic number, because the mean of its divisors is an integer number (74385486).

Almost surely, 2^1273066140 is an apocalyptic number.

1273066140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1273066140 is an abundant number, since it is smaller than the sum of its proper divisors (2297437188).

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

1273066140 is a wasteful number, since it uses less digits than its factorization.

1273066140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35238 (or 35236 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1273066140 is about 35680.0524102754. The cubic root of 1273066140 is about 1083.8029341343.

Adding to 1273066140 its reverse (416603721), we get a palindrome (1689669861).

The spelling of 1273066140 in words is "one billion, two hundred seventy-three million, sixty-six thousand, one hundred forty".