154053257 has 2 divisors, whose sum is σ = 154053258. Its totient is φ = 154053256.

The previous prime is 154053233. The next prime is 154053259. The reversal of 154053257 is 752350451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152300281 + 1752976 = 12341^2 + 1324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154053257 is a prime.

Together with 154053259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (154053259) 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, 77026628 + 77026629.

It is an arithmetic number, because the mean of its divisors is an integer number (77026629).

Almost surely, 2^154053257 is an apocalyptic number.

It is an amenable number.

154053257 is a deficient number, since it is larger than the sum of its proper divisors (1).

154053257 is an equidigital number, since it uses as much as digits as its factorization.

154053257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 154053257 is about 12411.8192461863. The cubic root of 154053257 is about 536.0726225669.

The spelling of 154053257 in words is "one hundred fifty-four million, fifty-three thousand, two hundred fifty-seven".