45076321 has 2 divisors, whose sum is σ = 45076322. Its totient is φ = 45076320.

The previous prime is 45076319. The next prime is 45076331. The reversal of 45076321 is 12367054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44076321 + 1000000 = 6639^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 45076321 - 2¹ = 45076319 is a prime.

Together with 45076319, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 45076321.

It is not a weakly prime, because it can be changed into another prime (45076331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22538160 + 22538161.

It is an arithmetic number, because the mean of its divisors is an integer number (22538161).

Almost surely, 2^45076321 is an apocalyptic number.

It is an amenable number.

45076321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45076321 is an equidigital number, since it uses as much as digits as its factorization.

45076321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 45076321 is about 6713.8901540016. The cubic root of 45076321 is about 355.8903025436.

The spelling of 45076321 in words is "forty-five million, seventy-six thousand, three hundred twenty-one".