1345576761 has 6 divisors (see below), whose sum is σ = 1943610890. Its totient is φ = 897051168.

The previous prime is 1345576747. The next prime is 1345576763. The reversal of 1345576761 is 1676755431.

1345576761 is a `hidden beast` number, since 1 + 3 + 4 + 5 + 576 + 76 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1226330361 + 119246400 = 35019^2 + 10920^2 .

It is not a de Polignac number, because 1345576761 - 2⁶ = 1345576697 is a prime.

It is a super-2 number, since 2×1345576761² = 3621153639486502242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345576763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74754256 + ... + 74754273.

Almost surely, 2^1345576761 is an apocalyptic number.

It is an amenable number.

1345576761 is a deficient number, since it is larger than the sum of its proper divisors (598034129).

1345576761 is a wasteful number, since it uses less digits than its factorization.

1345576761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149508535 (or 149508532 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 1345576761 is about 36682.1040972298. The cubic root of 1345576761 is about 1104.0010657874.

The spelling of 1345576761 in words is "one billion, three hundred forty-five million, five hundred seventy-six thousand, seven hundred sixty-one".