1202553445 has 4 divisors (see below), whose sum is σ = 1443064140. Its totient is φ = 962042752.

The previous prime is 1202553431. The next prime is 1202553461. The reversal of 1202553445 is 5443552021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5443552021 = 97 ⋅56119093.

It can be written as a sum of positive squares in 2 ways, for example, as 527437156 + 675116289 = 22966^2 + 25983^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202553445 - 2²¹ = 1200456293 is a prime.

It is a super-2 number, since 2×1202553445² = 2892269576162736050, which contains 22 as substring.

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, 120255340 + ... + 120255349.

It is an arithmetic number, because the mean of its divisors is an integer number (360766035).

Almost surely, 2^1202553445 is an apocalyptic number.

It is an amenable number.

1202553445 is a deficient number, since it is larger than the sum of its proper divisors (240510695).

1202553445 is an equidigital number, since it uses as much as digits as its factorization.

1202553445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240510694.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1202553445 is about 34677.8523700647. The cubic root of 1202553445 is about 1063.4117685897.

The spelling of 1202553445 in words is "one billion, two hundred two million, five hundred fifty-three thousand, four hundred forty-five".