1145203 has 2 divisors, whose sum is σ = 1145204. Its totient is φ = 1145202.

The previous prime is 1145191. The next prime is 1145213. The reversal of 1145203 is 3025411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145203 - 2⁹ = 1144691 is a prime.

It is a super-2 number, since 2×1145203² = 2622979822418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1145213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572601 + 572602.

It is an arithmetic number, because the mean of its divisors is an integer number (572602).

2^1145203 is an apocalyptic number.

1145203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145203 is an equidigital number, since it uses as much as digits as its factorization.

1145203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1145203 is about 1070.1415794183. The cubic root of 1145203 is about 104.6230778961.

The spelling of 1145203 in words is "one million, one hundred forty-five thousand, two hundred three".