1253106305 has 16 divisors (see below), whose sum is σ = 1641501504. Its totient is φ = 910754880.

The previous prime is 1253106299. The next prime is 1253106311. The reversal of 1253106305 is 5036013521.

It is an interprime number because it is at equal distance from previous prime (1253106299) and next prime (1253106311).

It is not a de Polignac number, because 1253106305 - 2⁴ = 1253106289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88742 + ... + 101888.

It is an arithmetic number, because the mean of its divisors is an integer number (102593844).

Almost surely, 2^1253106305 is an apocalyptic number.

It is an amenable number.

1253106305 is a deficient number, since it is larger than the sum of its proper divisors (388395199).

1253106305 is a wasteful number, since it uses less digits than its factorization.

1253106305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14896.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1253106305 is about 35399.2415879211. The cubic root of 1253106305 is about 1078.1089177241.

Adding to 1253106305 its reverse (5036013521), we get a palindrome (6289119826).

The spelling of 1253106305 in words is "one billion, two hundred fifty-three million, one hundred six thousand, three hundred five".