245054140 has 24 divisors (see below), whose sum is σ = 523338480. Its totient is φ = 96359808.

The previous prime is 245054111. The next prime is 245054143. The reversal of 245054140 is 41450542.

It is a happy number.

It is a super-2 number, since 2×245054140² = 120103063062279200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245054143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102657 + ... + 105016.

It is an arithmetic number, because the mean of its divisors is an integer number (21805770).

Almost surely, 2^245054140 is an apocalyptic number.

245054140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245054140 is an abundant number, since it is smaller than the sum of its proper divisors (278284340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245054140 is a wasteful number, since it uses less digits than its factorization.

245054140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207741 (or 207739 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 245054140 is about 15654.2051858279. The cubic root of 245054140 is about 625.7785625419.

The spelling of 245054140 in words is "two hundred forty-five million, fifty-four thousand, one hundred forty".