42141251 has 2 divisors, whose sum is σ = 42141252. Its totient is φ = 42141250.

The previous prime is 42141227. The next prime is 42141257. The reversal of 42141251 is 15214124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42141251 - 2¹⁴ = 42124867 is a prime.

It is not a weakly prime, because it can be changed into another prime (42141257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21070625 + 21070626.

It is an arithmetic number, because the mean of its divisors is an integer number (21070626).

Almost surely, 2^42141251 is an apocalyptic number.

42141251 is a deficient number, since it is larger than the sum of its proper divisors (1).

42141251 is an equidigital number, since it uses as much as digits as its factorization.

42141251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 20.

The square root of 42141251 is about 6491.6293024171. The cubic root of 42141251 is about 347.9919048410.

Adding to 42141251 its reverse (15214124), we get a palindrome (57355375).

It can be divided in two parts, 421 and 41251, that multiplied together give a triangular number (17366671 = T₅₈₉₃).

The spelling of 42141251 in words is "forty-two million, one hundred forty-one thousand, two hundred fifty-one".