201445925 has 6 divisors (see below), whose sum is σ = 249792978. Its totient is φ = 161156720.

The previous prime is 201445913. The next prime is 201445931. The reversal of 201445925 is 529544102.

It can be written as a sum of positive squares in 3 ways, for example, as 8958049 + 192487876 = 2993^2 + 13874^2 .

It is not a de Polignac number, because 201445925 - 2¹² = 201441829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201445891 and 201445900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4028894 + ... + 4028943.

It is an arithmetic number, because the mean of its divisors is an integer number (41632163).

Almost surely, 2^201445925 is an apocalyptic number.

201445925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201445925 is a deficient number, since it is larger than the sum of its proper divisors (48347053).

201445925 is an equidigital number, since it uses as much as digits as its factorization.

201445925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8057847 (or 8057842 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 201445925 is about 14193.1647281359. The cubic root of 201445925 is about 586.2094684223.

The spelling of 201445925 in words is "two hundred one million, four hundred forty-five thousand, nine hundred twenty-five".