1345145203 has 4 divisors (see below), whose sum is σ = 1345219960. Its totient is φ = 1345070448.

The previous prime is 1345145201. The next prime is 1345145209. The reversal of 1345145203 is 3025415431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1345145203 - 2¹ = 1345145201 is a prime.

It is a super-2 number, since 2×1345145203² = 3618831234307822418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345145201) 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, 7876 + ... + 52462.

It is an arithmetic number, because the mean of its divisors is an integer number (336304990).

Almost surely, 2^1345145203 is an apocalyptic number.

1345145203 is a deficient number, since it is larger than the sum of its proper divisors (74757).

1345145203 is an equidigital number, since it uses as much as digits as its factorization.

1345145203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74756.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1345145203 is about 36676.2212202948. The cubic root of 1345145203 is about 1103.8830268294.

The spelling of 1345145203 in words is "one billion, three hundred forty-five million, one hundred forty-five thousand, two hundred three".