1145245202 has 4 divisors (see below), whose sum is σ = 1717867806. Its totient is φ = 572622600.

The previous prime is 1145245163. The next prime is 1145245217. The reversal of 1145245202 is 2025425411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2025425411 = 383 ⋅5288317.

It can be written as a sum of positive squares in only one way, i.e., 1145077921 + 167281 = 33839^2 + 409^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286311299 + ... + 286311302.

Almost surely, 2^1145245202 is an apocalyptic number.

1145245202 is a deficient number, since it is larger than the sum of its proper divisors (572622604).

1145245202 is an equidigital number, since it uses as much as digits as its factorization.

1145245202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572622603.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1145245202 is about 33841.4716287575. The cubic root of 1145245202 is about 1046.2436303912.

The spelling of 1145245202 in words is "one billion, one hundred forty-five million, two hundred forty-five thousand, two hundred two".