42151073 has 2 divisors, whose sum is σ = 42151074. Its totient is φ = 42151072.

The previous prime is 42151049. The next prime is 42151093. The reversal of 42151073 is 37015124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23892544 + 18258529 = 4888^2 + 4273^2 .

It is a cyclic number.

It is not a de Polignac number, because 42151073 - 2⁶ = 42151009 is a prime.

It is not a weakly prime, because it can be changed into another prime (42151093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21075536 + 21075537.

It is an arithmetic number, because the mean of its divisors is an integer number (21075537).

Almost surely, 2^42151073 is an apocalyptic number.

It is an amenable number.

42151073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42151073 is an equidigital number, since it uses as much as digits as its factorization.

42151073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 42151073 is about 6492.3857710398. The cubic root of 42151073 is about 348.0189386135.

Adding to 42151073 its reverse (37015124), we get a palindrome (79166197).

The spelling of 42151073 in words is "forty-two million, one hundred fifty-one thousand, seventy-three".