545432101 has 2 divisors, whose sum is σ = 545432102. Its totient is φ = 545432100.

The previous prime is 545432053. The next prime is 545432119. The reversal of 545432101 is 101234545.

It is a happy number.

545432101 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519156225 + 26275876 = 22785^2 + 5126^2 .

It is a cyclic number.

It is not a de Polignac number, because 545432101 - 2⁹ = 545431589 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545435101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272716050 + 272716051.

It is an arithmetic number, because the mean of its divisors is an integer number (272716051).

Almost surely, 2^545432101 is an apocalyptic number.

It is an amenable number.

545432101 is a deficient number, since it is larger than the sum of its proper divisors (1).

545432101 is an equidigital number, since it uses as much as digits as its factorization.

545432101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 545432101 is about 23354.4878128380. The cubic root of 545432101 is about 817.0467336774.

Adding to 545432101 its reverse (101234545), we get a palindrome (646666646).

It can be divided in two parts, 54543 and 2101, that added together give a square (56644 = 238²).

The spelling of 545432101 in words is "five hundred forty-five million, four hundred thirty-two thousand, one hundred one".