274620161 has 16 divisors (see below), whose sum is σ = 293500800. Its totient is φ = 256384128.

The previous prime is 274620139. The next prime is 274620163. The reversal of 274620161 is 161026472.

It is a de Polignac number, because none of the positive numbers 2^k-274620161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274620163) 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 in 15 ways as a sum of consecutive naturals, for example, 212405 + ... + 213693.

It is an arithmetic number, because the mean of its divisors is an integer number (18343800).

Almost surely, 2^274620161 is an apocalyptic number.

It is an amenable number.

274620161 is a deficient number, since it is larger than the sum of its proper divisors (18880639).

274620161 is a wasteful number, since it uses less digits than its factorization.

274620161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 274620161 is about 16571.6674176137. The cubic root of 274620161 is about 649.9961822261.

The spelling of 274620161 in words is "two hundred seventy-four million, six hundred twenty thousand, one hundred sixty-one".