245149144 has 16 divisors (see below), whose sum is σ = 459862920. Its totient is φ = 122519040.

The previous prime is 245149141. The next prime is 245149169. The reversal of 245149144 is 441941542.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245149141) 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, 16459 + ... + 27589.

Almost surely, 2^245149144 is an apocalyptic number.

It is an amenable number.

245149144 is a deficient number, since it is larger than the sum of its proper divisors (214713776).

245149144 is a wasteful number, since it uses less digits than its factorization.

245149144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13890 (or 13886 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 245149144 is about 15657.2393479821. The cubic root of 245149144 is about 625.8594205724.

The spelling of 245149144 in words is "two hundred forty-five million, one hundred forty-nine thousand, one hundred forty-four".