245121144 has 32 divisors (see below), whose sum is σ = 613653840. Its totient is φ = 81593600.

The previous prime is 245121133. The next prime is 245121167. The reversal of 245121144 is 441121542.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11554 + ... + 24974.

Almost surely, 2^245121144 is an apocalyptic number.

245121144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

245121144 is an abundant number, since it is smaller than the sum of its proper divisors (368532696).

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

245121144 is a wasteful number, since it uses less digits than its factorization.

245121144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14191 (or 14187 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 245121144 is about 15656.3451673754. The cubic root of 245121144 is about 625.8355919067.

Adding to 245121144 its reverse (441121542), we get a palindrome (686242686).

The spelling of 245121144 in words is "two hundred forty-five million, one hundred twenty-one thousand, one hundred forty-four".