1254712081 has 12 divisors (see below), whose sum is σ = 1545420708. Its totient is φ = 1012204032.

The previous prime is 1254712061. The next prime is 1254712087. The reversal of 1254712081 is 1802174521.

It can be written as a sum of positive squares in 2 ways, for example, as 514382400 + 740329681 = 22680^2 + 27209^2 .

It is not a de Polignac number, because 1254712081 - 2¹⁵ = 1254679313 is a prime.

It is a super-2 number, since 2×1254712081² = 3148604812414701122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254712087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752296 + ... + 753961.

It is an arithmetic number, because the mean of its divisors is an integer number (128785059).

Almost surely, 2^1254712081 is an apocalyptic number.

It is an amenable number.

1254712081 is a deficient number, since it is larger than the sum of its proper divisors (290708627).

1254712081 is a wasteful number, since it uses less digits than its factorization.

1254712081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506288 (or 1506281 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 1254712081 is about 35421.9152644235. The cubic root of 1254712081 is about 1078.5692304871.

The spelling of 1254712081 in words is "one billion, two hundred fifty-four million, seven hundred twelve thousand, eighty-one".