274369961 has 2 divisors, whose sum is σ = 274369962. Its totient is φ = 274369960.

The previous prime is 274369951. The next prime is 274369993. The reversal of 274369961 is 169963472.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147379600 + 126990361 = 12140^2 + 11269^2 .

It is a cyclic number.

It is not a de Polignac number, because 274369961 - 2¹⁸ = 274107817 is a prime.

It is not a weakly prime, because it can be changed into another prime (274369951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137184980 + 137184981.

It is an arithmetic number, because the mean of its divisors is an integer number (137184981).

Almost surely, 2^274369961 is an apocalyptic number.

It is an amenable number.

274369961 is a deficient number, since it is larger than the sum of its proper divisors (1).

274369961 is an equidigital number, since it uses as much as digits as its factorization.

274369961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 274369961 is about 16564.1166682682. The cubic root of 274369961 is about 649.7987234787.

The spelling of 274369961 in words is "two hundred seventy-four million, three hundred sixty-nine thousand, nine hundred sixty-one".