45142661 has 2 divisors, whose sum is σ = 45142662. Its totient is φ = 45142660.

The previous prime is 45142649. The next prime is 45142673. The reversal of 45142661 is 16624154.

It is a balanced prime because it is at equal distance from previous prime (45142649) and next prime (45142673).

It can be written as a sum of positive squares in only one way, i.e., 44970436 + 172225 = 6706^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 45142661 - 2⁶ = 45142597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45142631) 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 as a sum of consecutive naturals, namely, 22571330 + 22571331.

It is an arithmetic number, because the mean of its divisors is an integer number (22571331).

Almost surely, 2^45142661 is an apocalyptic number.

It is an amenable number.

45142661 is a deficient number, since it is larger than the sum of its proper divisors (1).

45142661 is an equidigital number, since it uses as much as digits as its factorization.

45142661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 45142661 is about 6718.8288413979. The cubic root of 45142661 is about 356.0648079842.

The spelling of 45142661 in words is "forty-five million, one hundred forty-two thousand, six hundred sixty-one".