1273124545 has 64 divisors (see below), whose sum is σ = 2015539200. Its totient is φ = 747912960.

The previous prime is 1273124539. The next prime is 1273124551. The reversal of 1273124545 is 5454213721.

It is an interprime number because it is at equal distance from previous prime (1273124539) and next prime (1273124551).

It is not a de Polignac number, because 1273124545 - 2⁵ = 1273124513 is a prime.

It is a super-2 number, since 2×1273124545² = 3241692214162914050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1273124545.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1967412 + ... + 1968058.

It is an arithmetic number, because the mean of its divisors is an integer number (31492800).

Almost surely, 2^1273124545 is an apocalyptic number.

It is an amenable number.

1273124545 is a deficient number, since it is larger than the sum of its proper divisors (742414655).

1273124545 is a wasteful number, since it uses less digits than its factorization.

1273124545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958.

The product of its digits is 33600, while the sum is 34.

The square root of 1273124545 is about 35680.8708554037. The cubic root of 1273124545 is about 1083.8195079112.

The spelling of 1273124545 in words is "one billion, two hundred seventy-three million, one hundred twenty-four thousand, five hundred forty-five".