1254454345 has 4 divisors (see below), whose sum is σ = 1505345220. Its totient is φ = 1003563472.

The previous prime is 1254454321. The next prime is 1254454349. The reversal of 1254454345 is 5434544521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 593604496 + 660849849 = 24364^2 + 25707^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254454345 - 2⁷ = 1254454217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1254454349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125445430 + ... + 125445439.

It is an arithmetic number, because the mean of its divisors is an integer number (376336305).

Almost surely, 2^1254454345 is an apocalyptic number.

It is an amenable number.

1254454345 is a deficient number, since it is larger than the sum of its proper divisors (250890875).

1254454345 is an equidigital number, since it uses as much as digits as its factorization.

1254454345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250890874.

The product of its digits is 192000, while the sum is 37.

The square root of 1254454345 is about 35418.2769908419. The cubic root of 1254454345 is about 1078.4953741924.

Adding to 1254454345 its reverse (5434544521), we get a palindrome (6688998866).

The spelling of 1254454345 in words is "one billion, two hundred fifty-four million, four hundred fifty-four thousand, three hundred forty-five".