42040151 has 2 divisors, whose sum is σ = 42040152. Its totient is φ = 42040150.

The previous prime is 42040121. The next prime is 42040157. The reversal of 42040151 is 15104024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42040151 - 2¹⁴ = 42023767 is a prime.

It is a super-2 number, since 2×42040151² = 3534748592205602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42040157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21020075 + 21020076.

It is an arithmetic number, because the mean of its divisors is an integer number (21020076).

Almost surely, 2^42040151 is an apocalyptic number.

42040151 is a deficient number, since it is larger than the sum of its proper divisors (1).

42040151 is an equidigital number, since it uses as much as digits as its factorization.

42040151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42040151 is about 6483.8376753278. The cubic root of 42040151 is about 347.7133958343.

Adding to 42040151 its reverse (15104024), we get a palindrome (57144175).

The spelling of 42040151 in words is "forty-two million, forty thousand, one hundred fifty-one".