1253315434 has 12 divisors (see below), whose sum is σ = 2186907714. Its totient is φ = 537135144.

The previous prime is 1253315423. The next prime is 1253315443. The reversal of 1253315434 is 4345133521.

It can be written as a sum of positive squares in only one way, i.e., 1119103209 + 134212225 = 33453^2 + 11585^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1253315396 and 1253315405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6394369 + ... + 6394564.

Almost surely, 2^1253315434 is an apocalyptic number.

1253315434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1253315434 is a deficient number, since it is larger than the sum of its proper divisors (933592280).

1253315434 is a wasteful number, since it uses less digits than its factorization.

1253315434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12788949 (or 12788942 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 1253315434 is about 35402.1953274087. The cubic root of 1253315434 is about 1078.1688890390.

Adding to 1253315434 its reverse (4345133521), we get a palindrome (5598448955).

The spelling of 1253315434 in words is "one billion, two hundred fifty-three million, three hundred fifteen thousand, four hundred thirty-four".