1253563434 has 96 divisors (see below), whose sum is σ = 2946138624. Its totient is φ = 384199200.

The previous prime is 1253563429. The next prime is 1253563439. The reversal of 1253563434 is 4343653521.

1253563434 is a `hidden beast` number, since 1 + 2 + 53 + 563 + 43 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1253563429) and next prime (1253563439).

It is not an unprimeable number, because it can be changed into a prime (1253563439) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1192209 + ... + 1193259.

It is an arithmetic number, because the mean of its divisors is an integer number (30688944).

Almost surely, 2^1253563434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253563434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473069312).

1253563434 is an abundant number, since it is smaller than the sum of its proper divisors (1692575190).

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

1253563434 is a wasteful number, since it uses less digits than its factorization.

1253563434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192 (or 1189 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 1253563434 is about 35405.6977618010. The cubic root of 1253563434 is about 1078.2399986317.

The spelling of 1253563434 in words is "one billion, two hundred fifty-three million, five hundred sixty-three thousand, four hundred thirty-four".