154041521 has 2 divisors, whose sum is σ = 154041522. Its totient is φ = 154041520.

The previous prime is 154041497. The next prime is 154041541. The reversal of 154041521 is 125140451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114490000 + 39551521 = 10700^2 + 6289^2 .

It is a cyclic number.

It is not a de Polignac number, because 154041521 - 2⁶ = 154041457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (154041541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77020760 + 77020761.

It is an arithmetic number, because the mean of its divisors is an integer number (77020761).

Almost surely, 2^154041521 is an apocalyptic number.

It is an amenable number.

154041521 is a deficient number, since it is larger than the sum of its proper divisors (1).

154041521 is an equidigital number, since it uses as much as digits as its factorization.

154041521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 154041521 is about 12411.3464620081. The cubic root of 154041521 is about 536.0590092919.

Adding to 154041521 its reverse (125140451), we get a palindrome (279181972).

The spelling of 154041521 in words is "one hundred fifty-four million, forty-one thousand, five hundred twenty-one".