245540549 has 8 divisors (see below), whose sum is σ = 251164800. Its totient is φ = 239933056.

The previous prime is 245540543. The next prime is 245540551. The reversal of 245540549 is 945045542.

It is a happy number.

245540549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 245540549 - 2¹² = 245536453 is a prime.

It is a super-2 number, since 2×245540549² = 120580322406442802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245540543) 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, 28277 + ... + 35925.

It is an arithmetic number, because the mean of its divisors is an integer number (31395600).

Almost surely, 2^245540549 is an apocalyptic number.

It is an amenable number.

245540549 is a deficient number, since it is larger than the sum of its proper divisors (5624251).

245540549 is an equidigital number, since it uses as much as digits as its factorization.

245540549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8379.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 245540549 is about 15669.7335331524. The cubic root of 245540549 is about 626.1923257418.

The spelling of 245540549 in words is "two hundred forty-five million, five hundred forty thousand, five hundred forty-nine".