45021101 has 2 divisors, whose sum is σ = 45021102. Its totient is φ = 45021100.

The previous prime is 45021091. The next prime is 45021107. The reversal of 45021101 is 10112054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26522500 + 18498601 = 5150^2 + 4301^2 .

It is a cyclic number.

It is not a de Polignac number, because 45021101 - 2⁶ = 45021037 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 (45021107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22510550 + 22510551.

It is an arithmetic number, because the mean of its divisors is an integer number (22510551).

Almost surely, 2^45021101 is an apocalyptic number.

It is an amenable number.

45021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

45021101 is an equidigital number, since it uses as much as digits as its factorization.

45021101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 45021101 is about 6709.7765238494. The cubic root of 45021101 is about 355.7449173212.

Adding to 45021101 its reverse (10112054), we get a palindrome (55133155).

The spelling of 45021101 in words is "forty-five million, twenty-one thousand, one hundred one".