1345545461 has 8 divisors (see below), whose sum is σ = 1534287384. Its totient is φ = 1168980480.

The previous prime is 1345545433. The next prime is 1345545463. The reversal of 1345545461 is 1645455431.

It can be written as a sum of positive squares in 4 ways, for example, as 1223236 + 1344322225 = 1106^2 + 36665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345545461 - 2²² = 1341351157 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 (1345545463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3044000 + ... + 3044441.

It is an arithmetic number, because the mean of its divisors is an integer number (191785923).

Almost surely, 2^1345545461 is an apocalyptic number.

It is an amenable number.

1345545461 is a deficient number, since it is larger than the sum of its proper divisors (188741923).

1345545461 is a wasteful number, since it uses less digits than its factorization.

1345545461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088471.

The product of its digits is 144000, while the sum is 38.

The square root of 1345545461 is about 36681.6774561906. The cubic root of 1345545461 is about 1103.9925055174.

The spelling of 1345545461 in words is "one billion, three hundred forty-five million, five hundred forty-five thousand, four hundred sixty-one".