1293012745 has 8 divisors (see below), whose sum is σ = 1552440384. Its totient is φ = 1033860144.

The previous prime is 1293012727. The next prime is 1293012779. The reversal of 1293012745 is 5472103921.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1293012745 - 2⁹ = 1293012233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1293012745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58269 + ... + 77338.

It is an arithmetic number, because the mean of its divisors is an integer number (194055048).

Almost surely, 2^1293012745 is an apocalyptic number.

It is an amenable number.

1293012745 is a deficient number, since it is larger than the sum of its proper divisors (259427639).

1293012745 is a wasteful number, since it uses less digits than its factorization.

1293012745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137519.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1293012745 is about 35958.4864114162. The cubic root of 1293012745 is about 1089.4340256747.

The spelling of 1293012745 in words is "one billion, two hundred ninety-three million, twelve thousand, seven hundred forty-five".