254011649 has 4 divisors (see below), whose sum is σ = 254302164. Its totient is φ = 253721136.

The previous prime is 254011591. The next prime is 254011651. The reversal of 254011649 is 946110452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130690624 + 123321025 = 11432^2 + 11105^2 .

It is a cyclic number.

It is not a de Polignac number, because 254011649 - 2⁸ = 254011393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254011249) 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 3 ways as a sum of consecutive naturals, for example, 143942 + ... + 145695.

It is an arithmetic number, because the mean of its divisors is an integer number (63575541).

Almost surely, 2^254011649 is an apocalyptic number.

It is an amenable number.

254011649 is a deficient number, since it is larger than the sum of its proper divisors (290515).

254011649 is an equidigital number, since it uses as much as digits as its factorization.

254011649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290514.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 254011649 is about 15937.7429079528. The cubic root of 254011649 is about 633.3122345387.

The spelling of 254011649 in words is "two hundred fifty-four million, eleven thousand, six hundred forty-nine".