154245541 has 2 divisors, whose sum is σ = 154245542. Its totient is φ = 154245540.

The previous prime is 154245527. The next prime is 154245551. The reversal of 154245541 is 145542451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141848100 + 12397441 = 11910^2 + 3521^2 .

It is a cyclic number.

It is not a de Polignac number, because 154245541 - 2¹¹ = 154243493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154245551) 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, 77122770 + 77122771.

It is an arithmetic number, because the mean of its divisors is an integer number (77122771).

Almost surely, 2^154245541 is an apocalyptic number.

It is an amenable number.

154245541 is a deficient number, since it is larger than the sum of its proper divisors (1).

154245541 is an equidigital number, since it uses as much as digits as its factorization.

154245541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16000, while the sum is 31.

The square root of 154245541 is about 12419.5628344962. The cubic root of 154245541 is about 536.2955656661.

Adding to 154245541 its reverse (145542451), we get a palindrome (299787992).

The spelling of 154245541 in words is "one hundred fifty-four million, two hundred forty-five thousand, five hundred forty-one".