1203145345 has 8 divisors (see below), whose sum is σ = 1448988264. Its totient is φ = 959040384.

The previous prime is 1203145327. The next prime is 1203145357. The reversal of 1203145345 is 5435413021.

It can be written as a sum of positive squares in 4 ways, for example, as 265070961 + 938074384 = 16281^2 + 30628^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203145345 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432964 + ... + 435733.

It is an arithmetic number, because the mean of its divisors is an integer number (181123533).

Almost surely, 2^1203145345 is an apocalyptic number.

It is an amenable number.

1203145345 is a deficient number, since it is larger than the sum of its proper divisors (245842919).

1203145345 is an equidigital number, since it uses as much as digits as its factorization.

1203145345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868979.

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

The square root of 1203145345 is about 34686.3855857021. The cubic root of 1203145345 is about 1063.5862113382.

Adding to 1203145345 its reverse (5435413021), we get a palindrome (6638558366).

The spelling of 1203145345 in words is "one billion, two hundred three million, one hundred forty-five thousand, three hundred forty-five".