45221347 has 2 divisors, whose sum is σ = 45221348. Its totient is φ = 45221346.

The previous prime is 45221299. The next prime is 45221389. The reversal of 45221347 is 74312254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45221347 - 2¹¹ = 45219299 is a prime.

It is not a weakly prime, because it can be changed into another prime (45221447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22610673 + 22610674.

It is an arithmetic number, because the mean of its divisors is an integer number (22610674).

Almost surely, 2^45221347 is an apocalyptic number.

45221347 is a deficient number, since it is larger than the sum of its proper divisors (1).

45221347 is an equidigital number, since it uses as much as digits as its factorization.

45221347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 28.

The square root of 45221347 is about 6724.6819255635. The cubic root of 45221347 is about 356.2715677104.

The spelling of 45221347 in words is "forty-five million, two hundred twenty-one thousand, three hundred forty-seven".