1043054261 has 4 divisors (see below), whose sum is σ = 1104410412. Its totient is φ = 981698112.

The previous prime is 1043054239. The next prime is 1043054263. The reversal of 1043054261 is 1624503401.

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 402002500 + 641051761 = 20050^2 + 25319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043054261 is a prime.

It is a super-2 number, since 2×1043054261² = 2175924382780512242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1043054261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043054263) 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, 30678050 + ... + 30678083.

It is an arithmetic number, because the mean of its divisors is an integer number (276102603).

Almost surely, 2^1043054261 is an apocalyptic number.

It is an amenable number.

1043054261 is a deficient number, since it is larger than the sum of its proper divisors (61356151).

1043054261 is an equidigital number, since it uses as much as digits as its factorization.

1043054261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61356150.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1043054261 is about 32296.3505833089. The cubic root of 1043054261 is about 1014.1502464272.

Adding to 1043054261 its reverse (1624503401), we get a palindrome (2667557662).

The spelling of 1043054261 in words is "one billion, forty-three million, fifty-four thousand, two hundred sixty-one".