545115401 has 2 divisors, whose sum is σ = 545115402. Its totient is φ = 545115400.

The previous prime is 545115379. The next prime is 545115409. The reversal of 545115401 is 104511545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323820025 + 221295376 = 17995^2 + 14876^2 .

It is a cyclic number.

It is not a de Polignac number, because 545115401 - 2¹⁴ = 545099017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (545115409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272557700 + 272557701.

It is an arithmetic number, because the mean of its divisors is an integer number (272557701).

Almost surely, 2^545115401 is an apocalyptic number.

It is an amenable number.

545115401 is a deficient number, since it is larger than the sum of its proper divisors (1).

545115401 is an equidigital number, since it uses as much as digits as its factorization.

545115401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 545115401 is about 23347.7065468966. The cubic root of 545115401 is about 816.8885662366. Note that the first 3 decimals are identical.

Adding to 545115401 its reverse (104511545), we get a palindrome (649626946).

The spelling of 545115401 in words is "five hundred forty-five million, one hundred fifteen thousand, four hundred one".