1202045641 has 4 divisors (see below), whose sum is σ = 1202506884. Its totient is φ = 1201584400.

The previous prime is 1202045629. The next prime is 1202045657. The reversal of 1202045641 is 1465402021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1465402021 = 2963 ⋅494567.

It can be written as a sum of positive squares in 2 ways, for example, as 503553600 + 698492041 = 22440^2 + 26429^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202045641 - 2¹³ = 1202037449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202045441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226690 + ... + 231931.

It is an arithmetic number, because the mean of its divisors is an integer number (300626721).

Almost surely, 2^1202045641 is an apocalyptic number.

It is an amenable number.

1202045641 is a deficient number, since it is larger than the sum of its proper divisors (461243).

1202045641 is an equidigital number, since it uses as much as digits as its factorization.

1202045641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461242.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1202045641 is about 34670.5298632715. The cubic root of 1202045641 is about 1063.2620647021.

Adding to 1202045641 its reverse (1465402021), we get a palindrome (2667447662).

The spelling of 1202045641 in words is "one billion, two hundred two million, forty-five thousand, six hundred forty-one".