1076131261 has 4 divisors (see below), whose sum is σ = 1078486492. Its totient is φ = 1073776032.

The previous prime is 1076131249. The next prime is 1076131283. The reversal of 1076131261 is 1621316701.

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 529460100 + 546671161 = 23010^2 + 23381^2 .

It is a cyclic number.

It is not a de Polignac number, because 1076131261 - 2⁹ = 1076130749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1076134261) 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, 1176930 + ... + 1177843.

It is an arithmetic number, because the mean of its divisors is an integer number (269621623).

Almost surely, 2^1076131261 is an apocalyptic number.

It is an amenable number.

1076131261 is a deficient number, since it is larger than the sum of its proper divisors (2355231).

1076131261 is an equidigital number, since it uses as much as digits as its factorization.

1076131261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355230.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1076131261 is about 32804.4396538030. The cubic root of 1076131261 is about 1024.7590188198.

Adding to 1076131261 its reverse (1621316701), we get a palindrome (2697447962).

The spelling of 1076131261 in words is "one billion, seventy-six million, one hundred thirty-one thousand, two hundred sixty-one".