154338557 has 2 divisors, whose sum is σ = 154338558. Its totient is φ = 154338556.

The previous prime is 154338419. The next prime is 154338559. The reversal of 154338557 is 755833451.

154338557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93045316 + 61293241 = 9646^2 + 7829^2 .

It is a cyclic number.

It is not a de Polignac number, because 154338557 - 2¹⁸ = 154076413 is a prime.

Together with 154338559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154338559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77169278 + 77169279.

It is an arithmetic number, because the mean of its divisors is an integer number (77169279).

Almost surely, 2^154338557 is an apocalyptic number.

It is an amenable number.

154338557 is a deficient number, since it is larger than the sum of its proper divisors (1).

154338557 is an equidigital number, since it uses as much as digits as its factorization.

154338557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 41.

The square root of 154338557 is about 12423.3070073954. The cubic root of 154338557 is about 536.4033462952.

The spelling of 154338557 in words is "one hundred fifty-four million, three hundred thirty-eight thousand, five hundred fifty-seven".