1145245 has 8 divisors (see below), whose sum is σ = 1382400. Its totient is φ = 910800.

The previous prime is 1145227. The next prime is 1145269. The reversal of 1145245 is 5425411.

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

It is not a de Polignac number, because 1145245 - 2⁵ = 1145213 is a prime.

It is a super-2 number, since 2×1145245² = 2623172220050, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent 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, 420 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (172800).

2^1145245 is an apocalyptic number.

It is an amenable number.

1145245 is a deficient number, since it is larger than the sum of its proper divisors (237155).

1145245 is a wasteful number, since it uses less digits than its factorization.

1145245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355.

The product of its digits is 800, while the sum is 22.

The square root of 1145245 is about 1070.1612028101. The cubic root of 1145245 is about 104.6243568878.

The spelling of 1145245 in words is "one million, one hundred forty-five thousand, two hundred forty-five".