1293375945 has 16 divisors (see below), whose sum is σ = 2071271232. Its totient is φ = 689177280.

The previous prime is 1293375943. The next prime is 1293375947. The reversal of 1293375945 is 5495733921.

It is an interprime number because it is at equal distance from previous prime (1293375943) and next prime (1293375947).

It is not a de Polignac number, because 1293375945 - 2¹ = 1293375943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1293375894 and 1293375903.

It is not an unprimeable number, because it can be changed into a prime (1293375943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21546 + ... + 55235.

It is an arithmetic number, because the mean of its divisors is an integer number (129454452).

Almost surely, 2^1293375945 is an apocalyptic number.

1293375945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1293375945 is a deficient number, since it is larger than the sum of its proper divisors (777895287).

1293375945 is a wasteful number, since it uses less digits than its factorization.

1293375945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77912.

The product of its digits is 1020600, while the sum is 48.

The square root of 1293375945 is about 35963.5363250056. The cubic root of 1293375945 is about 1089.5360214199.

The spelling of 1293375945 in words is "one billion, two hundred ninety-three million, three hundred seventy-five thousand, nine hundred forty-five".