1253026445 has 16 divisors (see below), whose sum is σ = 1648838592. Its totient is φ = 906562560.

The previous prime is 1253026433. The next prime is 1253026451. The reversal of 1253026445 is 5446203521.

It is not a de Polignac number, because 1253026445 - 2⁶ = 1253026381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48407 + ... + 69636.

It is an arithmetic number, because the mean of its divisors is an integer number (103052412).

Almost surely, 2^1253026445 is an apocalyptic number.

It is an amenable number.

1253026445 is a deficient number, since it is larger than the sum of its proper divisors (395812147).

1253026445 is a wasteful number, since it uses less digits than its factorization.

1253026445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118252.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1253026445 is about 35398.1135796811. The cubic root of 1253026445 is about 1078.0860147438.

Adding to 1253026445 its reverse (5446203521), we get a palindrome (6699229966).

The spelling of 1253026445 in words is "one billion, two hundred fifty-three million, twenty-six thousand, four hundred forty-five".