154812641 has 2 divisors, whose sum is σ = 154812642. Its totient is φ = 154812640.

The previous prime is 154812613. The next prime is 154812661. The reversal of 154812641 is 146218451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147501025 + 7311616 = 12145^2 + 2704^2 .

It is a cyclic number.

It is not a de Polignac number, because 154812641 - 2⁶ = 154812577 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 154812598 and 154812607.

It is not a weakly prime, because it can be changed into another prime (154812661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77406320 + 77406321.

It is an arithmetic number, because the mean of its divisors is an integer number (77406321).

Almost surely, 2^154812641 is an apocalyptic number.

It is an amenable number.

154812641 is a deficient number, since it is larger than the sum of its proper divisors (1).

154812641 is an equidigital number, since it uses as much as digits as its factorization.

154812641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 32.

The square root of 154812641 is about 12442.3728042524. The cubic root of 154812641 is about 536.9520108958.

The spelling of 154812641 in words is "one hundred fifty-four million, eight hundred twelve thousand, six hundred forty-one".