1271201499 has 8 divisors (see below), whose sum is σ = 1883261520. Its totient is φ = 847467648.

The previous prime is 1271201471. The next prime is 1271201521. The reversal of 1271201499 is 9941021721.

It is not a de Polignac number, because 1271201499 - 2¹¹ = 1271199451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1271201429) 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, 23540742 + ... + 23540795.

It is an arithmetic number, because the mean of its divisors is an integer number (235407690).

Almost surely, 2^1271201499 is an apocalyptic number.

1271201499 is a deficient number, since it is larger than the sum of its proper divisors (612060021).

1271201499 is an equidigital number, since it uses as much as digits as its factorization.

1271201499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47081546 (or 47081540 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1271201499 is about 35653.9128147248. The cubic root of 1271201499 is about 1083.2735322466.

The spelling of 1271201499 in words is "one billion, two hundred seventy-one million, two hundred one thousand, four hundred ninety-nine".