45219001 has 2 divisors, whose sum is σ = 45219002. Its totient is φ = 45219000.

The previous prime is 45218959. The next prime is 45219007. The reversal of 45219001 is 10091254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28079401 + 17139600 = 5299^2 + 4140^2 .

It is a cyclic number.

It is not a de Polignac number, because 45219001 - 2⁹ = 45218489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45219007) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22609500 + 22609501.

It is an arithmetic number, because the mean of its divisors is an integer number (22609501).

Almost surely, 2^45219001 is an apocalyptic number.

It is an amenable number.

45219001 is a deficient number, since it is larger than the sum of its proper divisors (1).

45219001 is an equidigital number, since it uses as much as digits as its factorization.

45219001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 45219001 is about 6724.5074912591. The cubic root of 45219001 is about 356.2654067001.

The spelling of 45219001 in words is "forty-five million, two hundred nineteen thousand, one".