547172401 has 2 divisors, whose sum is σ = 547172402. Its totient is φ = 547172400.

The previous prime is 547172399. The next prime is 547172491. The reversal of 547172401 is 104271745.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540516001 + 6656400 = 23249^2 + 2580^2 .

It is a cyclic number.

It is not a de Polignac number, because 547172401 - 2¹ = 547172399 is a prime.

It is a super-2 number, since 2×547172401² = 598795272832209602, which contains 22 as substring.

Together with 547172399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (547172491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273586200 + 273586201.

It is an arithmetic number, because the mean of its divisors is an integer number (273586201).

Almost surely, 2^547172401 is an apocalyptic number.

It is an amenable number.

547172401 is a deficient number, since it is larger than the sum of its proper divisors (1).

547172401 is an equidigital number, since it uses as much as digits as its factorization.

547172401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 547172401 is about 23391.7165039251. The cubic root of 547172401 is about 817.9147896766.

The spelling of 547172401 in words is "five hundred forty-seven million, one hundred seventy-two thousand, four hundred one".