1043650361 has 4 divisors (see below), whose sum is σ = 1123931172. Its totient is φ = 963369552.

The previous prime is 1043650327. The next prime is 1043650393. The reversal of 1043650361 is 1630563401.

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 379041961 + 664608400 = 19469^2 + 25780^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043650361 - 2¹⁰ = 1043649337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1043650561) 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, 40140386 + ... + 40140411.

It is an arithmetic number, because the mean of its divisors is an integer number (280982793).

Almost surely, 2^1043650361 is an apocalyptic number.

It is an amenable number.

1043650361 is a deficient number, since it is larger than the sum of its proper divisors (80280811).

1043650361 is an equidigital number, since it uses as much as digits as its factorization.

1043650361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80280810.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1043650361 is about 32305.5778620349. The cubic root of 1043650361 is about 1014.3434034720.

The spelling of 1043650361 in words is "one billion, forty-three million, six hundred fifty thousand, three hundred sixty-one".