1253052045 has 64 divisors (see below), whose sum is σ = 2608058880. Its totient is φ = 558835200.

The previous prime is 1253052019. The next prime is 1253052049. The reversal of 1253052045 is 5402503521.

It is a happy number.

It is not a de Polignac number, because 1253052045 - 2⁵ = 1253052013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253052049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22575 + ... + 54915.

It is an arithmetic number, because the mean of its divisors is an integer number (40750920).

Almost surely, 2^1253052045 is an apocalyptic number.

1253052045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1253052045 is an abundant number, since it is smaller than the sum of its proper divisors (1355006835).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253052045 is a wasteful number, since it uses less digits than its factorization.

1253052045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32403 (or 32397 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1253052045 is about 35398.4751790243. The cubic root of 1253052045 is about 1078.0933566516.

Adding to 1253052045 its reverse (5402503521), we get a palindrome (6655555566).

The spelling of 1253052045 in words is "one billion, two hundred fifty-three million, fifty-two thousand, forty-five".