1273471745 has 32 divisors (see below), whose sum is σ = 1892905728. Its totient is φ = 800886528.

The previous prime is 1273471729. The next prime is 1273471769. The reversal of 1273471745 is 5471743721.

It is a happy number.

It is not a de Polignac number, because 1273471745 - 2⁴ = 1273471729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62522 + ... + 80348.

It is an arithmetic number, because the mean of its divisors is an integer number (59153304).

Almost surely, 2^1273471745 is an apocalyptic number.

It is an amenable number.

1273471745 is a deficient number, since it is larger than the sum of its proper divisors (619433983).

1273471745 is a wasteful number, since it uses less digits than its factorization.

1273471745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18009.

The product of its digits is 164640, while the sum is 41.

The square root of 1273471745 is about 35685.7358758370. The cubic root of 1273471745 is about 1083.9180235230.

The spelling of 1273471745 in words is "one billion, two hundred seventy-three million, four hundred seventy-one thousand, seven hundred forty-five".