163225740 has 48 divisors (see below), whose sum is σ = 457696512. Its totient is φ = 43463616.

The previous prime is 163225723. The next prime is 163225753. The reversal of 163225740 is 47522361.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 163225698 and 163225707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51687 + ... + 54753.

It is an arithmetic number, because the mean of its divisors is an integer number (9535344).

Almost surely, 2^163225740 is an apocalyptic number.

163225740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163225740 is an abundant number, since it is smaller than the sum of its proper divisors (294470772).

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

163225740 is a wasteful number, since it uses less digits than its factorization.

163225740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966 (or 3964 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 163225740 is about 12775.9829367450. The cubic root of 163225740 is about 546.5076120322.

It can be divided in two parts, 1632 and 25740, that added together give a palindrome (27372).

The spelling of 163225740 in words is "one hundred sixty-three million, two hundred twenty-five thousand, seven hundred forty".