1272144010 has 8 divisors (see below), whose sum is σ = 2289859236. Its totient is φ = 508857600.

The previous prime is 1272143989. The next prime is 1272144019. The reversal of 1272144010 is 104412721.

It can be written as a sum of positive squares in 2 ways, for example, as 1264015809 + 8128201 = 35553^2 + 2851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1272144019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63607191 + ... + 63607210.

Almost surely, 2^1272144010 is an apocalyptic number.

1272144010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272144010 is a deficient number, since it is larger than the sum of its proper divisors (1017715226).

1272144010 is a wasteful number, since it uses less digits than its factorization.

1272144010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127214408.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1272144010 is about 35667.1278630618. The cubic root of 1272144010 is about 1083.5411910957.

Adding to 1272144010 its reverse (104412721), we get a palindrome (1376556731).

The spelling of 1272144010 in words is "one billion, two hundred seventy-two million, one hundred forty-four thousand, ten".