2045507 has 4 divisors (see below), whose sum is σ = 2054520. Its totient is φ = 2036496.

The previous prime is 2045503. The next prime is 2045509. The reversal of 2045507 is 7055402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2045507 - 2² = 2045503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4157 + ... + 4622.

It is an arithmetic number, because the mean of its divisors is an integer number (513630).

2^2045507 is an apocalyptic number.

2045507 is a deficient number, since it is larger than the sum of its proper divisors (9013).

2045507 is an equidigital number, since it uses as much as digits as its factorization.

2045507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9012.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 2045507 is about 1430.2122220146. The cubic root of 2045507 is about 126.9405347087.

It can be divided in two parts, 2045 and 507, that added together give a palindrome (2552).

The spelling of 2045507 in words is "two million, forty-five thousand, five hundred seven".