1272115481 has 8 divisors (see below), whose sum is σ = 1565680704. Its totient is φ = 1006508880.

The previous prime is 1272115409. The next prime is 1272115499. The reversal of 1272115481 is 1845112721.

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

It is not a de Polignac number, because 1272115481 - 2¹⁴ = 1272099097 is a prime.

It is a super-2 number, since 2×1272115481² = 3236555593999722722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1272115681) 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, 6989555 + ... + 6989736.

It is an arithmetic number, because the mean of its divisors is an integer number (195710088).

Almost surely, 2^1272115481 is an apocalyptic number.

It is an amenable number.

1272115481 is a deficient number, since it is larger than the sum of its proper divisors (293565223).

1272115481 is a wasteful number, since it uses less digits than its factorization.

1272115481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13979311.

The product of its digits is 4480, while the sum is 32.

The square root of 1272115481 is about 35666.7279267387. The cubic root of 1272115481 is about 1083.5330912324.

The spelling of 1272115481 in words is "one billion, two hundred seventy-two million, one hundred fifteen thousand, four hundred eighty-one".