242625541 has 2 divisors, whose sum is σ = 242625542. Its totient is φ = 242625540.

The previous prime is 242625469. The next prime is 242625553. The reversal of 242625541 is 145526242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237468100 + 5157441 = 15410^2 + 2271^2 .

It is a cyclic number.

It is not a de Polignac number, because 242625541 - 2⁹ = 242625029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242625841) 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, 121312770 + 121312771.

It is an arithmetic number, because the mean of its divisors is an integer number (121312771).

Almost surely, 2^242625541 is an apocalyptic number.

It is an amenable number.

242625541 is a deficient number, since it is larger than the sum of its proper divisors (1).

242625541 is an equidigital number, since it uses as much as digits as its factorization.

242625541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 31.

The square root of 242625541 is about 15576.4418594235. The cubic root of 242625541 is about 623.7044446337.

The spelling of 242625541 in words is "two hundred forty-two million, six hundred twenty-five thousand, five hundred forty-one".