45402101 has 2 divisors, whose sum is σ = 45402102. Its totient is φ = 45402100.

The previous prime is 45402083. The next prime is 45402103. The reversal of 45402101 is 10120454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40627876 + 4774225 = 6374^2 + 2185^2 .

It is a cyclic number.

It is not a de Polignac number, because 45402101 - 2¹⁸ = 45139957 is a prime.

It is a super-2 number, since 2×45402101² = 4122701550428402, which contains 22 as substring.

Together with 45402103, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45402101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45402103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22701050 + 22701051.

It is an arithmetic number, because the mean of its divisors is an integer number (22701051).

Almost surely, 2^45402101 is an apocalyptic number.

It is an amenable number.

45402101 is a deficient number, since it is larger than the sum of its proper divisors (1).

45402101 is an equidigital number, since it uses as much as digits as its factorization.

45402101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 45402101 is about 6738.1081172685. The cubic root of 45402101 is about 356.7456203740.

Adding to 45402101 its reverse (10120454), we get a palindrome (55522555).

The spelling of 45402101 in words is "forty-five million, four hundred two thousand, one hundred one".