1201653445 has 4 divisors (see below), whose sum is σ = 1441984140. Its totient is φ = 961322752.

The previous prime is 1201653407. The next prime is 1201653451. The reversal of 1201653445 is 5443561021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 675272196 + 526381249 = 25986^2 + 22943^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201653445 - 2⁷ = 1201653317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120165340 + ... + 120165349.

It is an arithmetic number, because the mean of its divisors is an integer number (360496035).

Almost surely, 2^1201653445 is an apocalyptic number.

It is an amenable number.

1201653445 is a deficient number, since it is larger than the sum of its proper divisors (240330695).

1201653445 is an equidigital number, since it uses as much as digits as its factorization.

1201653445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240330694.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1201653445 is about 34664.8733590648. The cubic root of 1201653445 is about 1063.1464139382.

The spelling of 1201653445 in words is "one billion, two hundred one million, six hundred fifty-three thousand, four hundred forty-five".