45126561 has 4 divisors (see below), whose sum is σ = 60168752. Its totient is φ = 30084372.

The previous prime is 45126559. The next prime is 45126589. The reversal of 45126561 is 16562154.

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.

It is not a de Polignac number, because 45126561 - 2¹ = 45126559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45126541) 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, 7521091 + ... + 7521096.

It is an arithmetic number, because the mean of its divisors is an integer number (15042188).

Almost surely, 2^45126561 is an apocalyptic number.

It is an amenable number.

45126561 is a deficient number, since it is larger than the sum of its proper divisors (15042191).

45126561 is a wasteful number, since it uses less digits than its factorization.

45126561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15042190.

The product of its digits is 7200, while the sum is 30.

The square root of 45126561 is about 6717.6306090764. The cubic root of 45126561 is about 356.0224731216.

The spelling of 45126561 in words is "forty-five million, one hundred twenty-six thousand, five hundred sixty-one".