42151559 has 2 divisors, whose sum is σ = 42151560. Its totient is φ = 42151558.

The previous prime is 42151553. The next prime is 42151561. The reversal of 42151559 is 95515124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42151559 - 2²⁰ = 41102983 is a prime.

It is a super-2 number, since 2×42151559² = 3553507852260962, which contains 22 as substring.

Together with 42151561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42151553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21075779 + 21075780.

It is an arithmetic number, because the mean of its divisors is an integer number (21075780).

Almost surely, 2^42151559 is an apocalyptic number.

42151559 is a deficient number, since it is larger than the sum of its proper divisors (1).

42151559 is an equidigital number, since it uses as much as digits as its factorization.

42151559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 32.

The square root of 42151559 is about 6492.4231993917. The cubic root of 42151559 is about 348.0202761560.

The spelling of 42151559 in words is "forty-two million, one hundred fifty-one thousand, five hundred fifty-nine".