245121732 has 72 divisors (see below), whose sum is σ = 636295296. Its totient is φ = 79527744.

The previous prime is 245121727. The next prime is 245121763. The reversal of 245121732 is 237121542.

It is a junction number, because it is equal to n+sod(n) for n = 245121696 and 245121705.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468423 + ... + 468945.

Almost surely, 2^245121732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245121732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318147648).

245121732 is an abundant number, since it is smaller than the sum of its proper divisors (391173564).

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

245121732 is a wasteful number, since it uses less digits than its factorization.

245121732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857 (or 852 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 245121732 is about 15656.3639456931. The cubic root of 245121732 is about 625.8360923273.

It can be divided in two parts, 24512 and 1732, that added together give a square (26244 = 162²).

The spelling of 245121732 in words is "two hundred forty-five million, one hundred twenty-one thousand, seven hundred thirty-two".