42919351 has 2 divisors, whose sum is σ = 42919352. Its totient is φ = 42919350.

The previous prime is 42919343. The next prime is 42919361. The reversal of 42919351 is 15391924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42919351 - 2³ = 42919343 is a prime.

It is a super-2 number, since 2×42919351² = 3684141380522402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42919361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21459675 + 21459676.

It is an arithmetic number, because the mean of its divisors is an integer number (21459676).

Almost surely, 2^42919351 is an apocalyptic number.

42919351 is a deficient number, since it is larger than the sum of its proper divisors (1).

42919351 is an equidigital number, since it uses as much as digits as its factorization.

42919351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 34.

The square root of 42919351 is about 6551.2862095927. The cubic root of 42919351 is about 350.1206414046.

The spelling of 42919351 in words is "forty-two million, nine hundred nineteen thousand, three hundred fifty-one".