1293908425 has 6 divisors (see below), whose sum is σ = 1604446478. Its totient is φ = 1035126720.

The previous prime is 1293908423. The next prime is 1293908461. The reversal of 1293908425 is 5248093921.

It can be written as a sum of positive squares in 3 ways, for example, as 206755641 + 1087152784 = 14379^2 + 32972^2 .

It is not a de Polignac number, because 1293908425 - 2¹ = 1293908423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1293908423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25878144 + ... + 25878193.

Almost surely, 2^1293908425 is an apocalyptic number.

It is an amenable number.

1293908425 is a deficient number, since it is larger than the sum of its proper divisors (310538053).

1293908425 is an equidigital number, since it uses as much as digits as its factorization.

1293908425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51756347 (or 51756342 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1293908425 is about 35970.9386171671. The cubic root of 1293908425 is about 1089.6855207579.

The spelling of 1293908425 in words is "one billion, two hundred ninety-three million, nine hundred eight thousand, four hundred twenty-five".