274985153 has 2 divisors, whose sum is σ = 274985154. Its totient is φ = 274985152.

The previous prime is 274985143. The next prime is 274985197. The reversal of 274985153 is 351589472.

It is an a-pointer prime, because the next prime (274985197) can be obtained adding 274985153 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247653169 + 27331984 = 15737^2 + 5228^2 .

It is a cyclic number.

It is not a de Polignac number, because 274985153 - 2¹⁴ = 274968769 is a prime.

It is not a weakly prime, because it can be changed into another prime (274985143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137492576 + 137492577.

It is an arithmetic number, because the mean of its divisors is an integer number (137492577).

Almost surely, 2^274985153 is an apocalyptic number.

It is an amenable number.

274985153 is a deficient number, since it is larger than the sum of its proper divisors (1).

274985153 is an equidigital number, since it uses as much as digits as its factorization.

274985153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 274985153 is about 16582.6762918414. The cubic root of 274985153 is about 650.2840202568.

The spelling of 274985153 in words is "two hundred seventy-four million, nine hundred eighty-five thousand, one hundred fifty-three".