1245165 has 32 divisors (see below), whose sum is σ = 2229120. Its totient is φ = 589824.

The previous prime is 1245149. The next prime is 1245169. The reversal of 1245165 is 5615421.

It is not a de Polignac number, because 1245165 - 2⁴ = 1245149 is a prime.

It is an Ulam number.

1245165 is a lucky number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4717 + ... + 4973.

It is an arithmetic number, because the mean of its divisors is an integer number (69660).

2^1245165 is an apocalyptic number.

1245165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245165 is a deficient number, since it is larger than the sum of its proper divisors (983955).

1245165 is a wasteful number, since it uses less digits than its factorization.

1245165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its digits is 1200, while the sum is 24.

The square root of 1245165 is about 1115.8696160394. The cubic root of 1245165 is about 107.5826658183.

The spelling of 1245165 in words is "one million, two hundred forty-five thousand, one hundred sixty-five".