154661459 has 2 divisors, whose sum is σ = 154661460. Its totient is φ = 154661458.

The previous prime is 154661371. The next prime is 154661467. The reversal of 154661459 is 954166451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 154661459 - 2⁸ = 154661203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (154664459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77330729 + 77330730.

It is an arithmetic number, because the mean of its divisors is an integer number (77330730).

Almost surely, 2^154661459 is an apocalyptic number.

154661459 is a deficient number, since it is larger than the sum of its proper divisors (1).

154661459 is an equidigital number, since it uses as much as digits as its factorization.

154661459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 41.

The square root of 154661459 is about 12436.2960321794. The cubic root of 154661459 is about 536.7771674694. Note that the first 3 decimals are identical.

The spelling of 154661459 in words is "one hundred fifty-four million, six hundred sixty-one thousand, four hundred fifty-nine".