102541457 has 2 divisors, whose sum is σ = 102541458. Its totient is φ = 102541456.

The previous prime is 102541441. The next prime is 102541463. The reversal of 102541457 is 754145201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102232321 + 309136 = 10111^2 + 556^2 .

It is a cyclic number.

It is not a de Polignac number, because 102541457 - 2⁴ = 102541441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102541487) 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, 51270728 + 51270729.

It is an arithmetic number, because the mean of its divisors is an integer number (51270729).

Almost surely, 2^102541457 is an apocalyptic number.

It is an amenable number.

102541457 is a deficient number, since it is larger than the sum of its proper divisors (1).

102541457 is an equidigital number, since it uses as much as digits as its factorization.

102541457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 102541457 is about 10126.2755739709. The cubic root of 102541457 is about 468.0581675211.

Adding to 102541457 its reverse (754145201), we get a palindrome (856686658).

It can be divided in two parts, 10254 and 1457, that added together give a palindrome (11711).

The spelling of 102541457 in words is "one hundred two million, five hundred forty-one thousand, four hundred fifty-seven".