272349421 has 2 divisors, whose sum is σ = 272349422. Its totient is φ = 272349420.

The previous prime is 272349409. The next prime is 272349431. The reversal of 272349421 is 124943272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262893796 + 9455625 = 16214^2 + 3075^2 .

It is a cyclic number.

It is not a de Polignac number, because 272349421 - 2¹¹ = 272347373 is a prime.

It is equal to p_14832187 and since 272349421 and 14832187 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272349431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136174710 + 136174711.

It is an arithmetic number, because the mean of its divisors is an integer number (136174711).

Almost surely, 2^272349421 is an apocalyptic number.

It is an amenable number.

272349421 is a deficient number, since it is larger than the sum of its proper divisors (1).

272349421 is an equidigital number, since it uses as much as digits as its factorization.

272349421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 272349421 is about 16503.0124825742. The cubic root of 272349421 is about 648.1996896697.

The spelling of 272349421 in words is "two hundred seventy-two million, three hundred forty-nine thousand, four hundred twenty-one".