245121012 has 24 divisors (see below), whose sum is σ = 635499200. Its totient is φ = 81706968.

The previous prime is 245121007. The next prime is 245121013. The reversal of 245121012 is 210121542.

245121012 is a `hidden beast` number, since 2 + 451 + 210 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245121013) 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, 1134712 + ... + 1134927.

Almost surely, 2^245121012 is an apocalyptic number.

It is an amenable number.

245121012 is an abundant number, since it is smaller than the sum of its proper divisors (390378188).

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

245121012 is a wasteful number, since it uses less digits than its factorization.

245121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269652 (or 2269644 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 245121012 is about 15656.3409518316. The cubic root of 245121012 is about 625.8354795672.

Adding to 245121012 its reverse (210121542), we get a palindrome (455242554).

The spelling of 245121012 in words is "two hundred forty-five million, one hundred twenty-one thousand, twelve".