1345512453 has 4 divisors (see below), whose sum is σ = 1794016608. Its totient is φ = 897008300.

The previous prime is 1345512439. The next prime is 1345512521. The reversal of 1345512453 is 3542155431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1345512453 - 2¹³ = 1345504261 is a prime.

It is a super-2 number, since 2×1345512453² = 3620807522356154418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345512403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224252073 + ... + 224252078.

It is an arithmetic number, because the mean of its divisors is an integer number (448504152).

Almost surely, 2^1345512453 is an apocalyptic number.

It is an amenable number.

1345512453 is a deficient number, since it is larger than the sum of its proper divisors (448504155).

1345512453 is an equidigital number, since it uses as much as digits as its factorization.

1345512453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448504154.

The product of its digits is 36000, while the sum is 33.

The square root of 1345512453 is about 36681.2275285329. The cubic root of 1345512453 is about 1103.9834779808.

Adding to 1345512453 its reverse (3542155431), we get a palindrome (4887667884).

The spelling of 1345512453 in words is "one billion, three hundred forty-five million, five hundred twelve thousand, four hundred fifty-three".