2545445 has 8 divisors (see below), whose sum is σ = 3490944. Its totient is φ = 1745424.

The previous prime is 2545429. The next prime is 2545447. The reversal of 2545445 is 5445452.

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

It is a cyclic number.

It is not a de Polignac number, because 2545445 - 2⁴ = 2545429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36329 + ... + 36398.

It is an arithmetic number, because the mean of its divisors is an integer number (436368).

2^2545445 is an apocalyptic number.

It is an amenable number.

2545445 is a deficient number, since it is larger than the sum of its proper divisors (945499).

2545445 is an equidigital number, since it uses as much as digits as its factorization.

2545445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72739.

The product of its digits is 16000, while the sum is 29.

The square root of 2545445 is about 1595.4450789670. The cubic root of 2545445 is about 136.5383255458.

The spelling of 2545445 in words is "two million, five hundred forty-five thousand, four hundred forty-five".