1272134130 has 16 divisors (see below), whose sum is σ = 3053121984. Its totient is φ = 339235760.

The previous prime is 1272134119. The next prime is 1272134131. The reversal of 1272134130 is 314312721.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1272134130.

It is not an unprimeable number, because it can be changed into a prime (1272134131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21202206 + ... + 21202265.

It is an arithmetic number, because the mean of its divisors is an integer number (190820124).

Almost surely, 2^1272134130 is an apocalyptic number.

1272134130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272134130 is an abundant number, since it is smaller than the sum of its proper divisors (1780987854).

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

1272134130 is a wasteful number, since it uses less digits than its factorization.

1272134130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42404481.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1272134130 is about 35666.9893599109. The cubic root of 1272134130 is about 1083.5383860111.

Adding to 1272134130 its reverse (314312721), we get a palindrome (1586446851).

The spelling of 1272134130 in words is "one billion, two hundred seventy-two million, one hundred thirty-four thousand, one hundred thirty".