1145076761 has 4 divisors (see below), whose sum is σ = 1145191632. Its totient is φ = 1144961892.

The previous prime is 1145076739. The next prime is 1145076773. The reversal of 1145076761 is 1676705411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1676705411 = 5581 ⋅300431.

It is a cyclic number.

It is not a de Polignac number, because 1145076761 - 2²⁶ = 1077967897 is a prime.

It is a super-2 number, since 2×1145076761² = 2622401577164502242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145076721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40895 + ... + 62948.

It is an arithmetic number, because the mean of its divisors is an integer number (286297908).

Almost surely, 2^1145076761 is an apocalyptic number.

It is an amenable number.

1145076761 is a deficient number, since it is larger than the sum of its proper divisors (114871).

1145076761 is a wasteful number, since it uses less digits than its factorization.

1145076761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114870.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 1145076761 is about 33838.9828600093. The cubic root of 1145076761 is about 1046.1923345453.

The spelling of 1145076761 in words is "one billion, one hundred forty-five million, seventy-six thousand, seven hundred sixty-one".