42471951 has 4 divisors (see below), whose sum is σ = 56629272. Its totient is φ = 28314632.

The previous prime is 42471937. The next prime is 42471971. The reversal of 42471951 is 15917424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42471951 - 2⁶ = 42471887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42471931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7078656 + ... + 7078661.

It is an arithmetic number, because the mean of its divisors is an integer number (14157318).

Almost surely, 2^42471951 is an apocalyptic number.

42471951 is a deficient number, since it is larger than the sum of its proper divisors (14157321).

42471951 is a wasteful number, since it uses less digits than its factorization.

42471951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14157320.

The product of its digits is 10080, while the sum is 33.

The square root of 42471951 is about 6517.0507900430. The cubic root of 42471951 is about 348.8998133345.

The spelling of 42471951 in words is "forty-two million, four hundred seventy-one thousand, nine hundred fifty-one".