42013207 has 2 divisors, whose sum is σ = 42013208. Its totient is φ = 42013206.

The previous prime is 42013187. The next prime is 42013211. The reversal of 42013207 is 70231024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42013207 - 2¹⁵ = 41980439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42013217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21006603 + 21006604.

It is an arithmetic number, because the mean of its divisors is an integer number (21006604).

Almost surely, 2^42013207 is an apocalyptic number.

42013207 is a deficient number, since it is larger than the sum of its proper divisors (1).

42013207 is an equidigital number, since it uses as much as digits as its factorization.

42013207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 42013207 is about 6481.7595604897. The cubic root of 42013207 is about 347.6390954988.

The spelling of 42013207 in words is "forty-two million, thirteen thousand, two hundred seven".