201153445 has 8 divisors (see below), whose sum is σ = 242718840. Its totient is φ = 160032960.

The previous prime is 201153431. The next prime is 201153457. The reversal of 201153445 is 544351102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17089956 + 184063489 = 4134^2 + 13567^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201153445 - 2⁵ = 201153413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110230 + ... + 112039.

It is an arithmetic number, because the mean of its divisors is an integer number (30339855).

Almost surely, 2^201153445 is an apocalyptic number.

It is an amenable number.

201153445 is a deficient number, since it is larger than the sum of its proper divisors (41565395).

201153445 is a wasteful number, since it uses less digits than its factorization.

201153445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222455.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 201153445 is about 14182.8574342408. The cubic root of 201153445 is about 585.9256245226.

The spelling of 201153445 in words is "two hundred one million, one hundred fifty-three thousand, four hundred forty-five".