42573431 has 2 divisors, whose sum is σ = 42573432. Its totient is φ = 42573430.

The previous prime is 42573413. The next prime is 42573523. The reversal of 42573431 is 13437524.

It is a happy number.

Together with previous prime (42573413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42573431 - 2⁶ = 42573367 is a prime.

It is a super-2 number, since 2×42573431² = 3624994054223522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42573394 and 42573403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42573031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21286715 + 21286716.

It is an arithmetic number, because the mean of its divisors is an integer number (21286716).

Almost surely, 2^42573431 is an apocalyptic number.

42573431 is a deficient number, since it is larger than the sum of its proper divisors (1).

42573431 is an equidigital number, since it uses as much as digits as its factorization.

42573431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 42573431 is about 6524.8318752287. The cubic root of 42573431 is about 349.1774725920.

The spelling of 42573431 in words is "forty-two million, five hundred seventy-three thousand, four hundred thirty-one".