1253415442 has 8 divisors (see below), whose sum is σ = 1880279100. Its totient is φ = 626655744.

The previous prime is 1253415421. The next prime is 1253415461. The reversal of 1253415442 is 2445143521.

It can be written as a sum of positive squares in 2 ways, for example, as 1234046641 + 19368801 = 35129^2 + 4401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21534 + ... + 54502.

Almost surely, 2^1253415442 is an apocalyptic number.

1253415442 is a deficient number, since it is larger than the sum of its proper divisors (626863658).

1253415442 is a wasteful number, since it uses less digits than its factorization.

1253415442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51980.

The product of its digits is 19200, while the sum is 31.

The square root of 1253415442 is about 35403.6077540129. The cubic root of 1253415442 is about 1078.1975656843.

Adding to 1253415442 its reverse (2445143521), we get a palindrome (3698558963).

The spelling of 1253415442 in words is "one billion, two hundred fifty-three million, four hundred fifteen thousand, four hundred forty-two".