42954031 has 2 divisors, whose sum is σ = 42954032. Its totient is φ = 42954030.

The previous prime is 42954029. The next prime is 42954049. The reversal of 42954031 is 13045924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42954031 - 2¹ = 42954029 is a prime.

It is a super-2 number, since 2×42954031² = 3690097558297922, which contains 22 as substring.

Together with 42954029, it forms a pair of twin primes.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42954061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21477015 + 21477016.

It is an arithmetic number, because the mean of its divisors is an integer number (21477016).

Almost surely, 2^42954031 is an apocalyptic number.

42954031 is a deficient number, since it is larger than the sum of its proper divisors (1).

42954031 is an equidigital number, since it uses as much as digits as its factorization.

42954031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42954031 is about 6553.9324836315. The cubic root of 42954031 is about 350.2149183420.

Adding to 42954031 its reverse (13045924), we get a palindrome (55999955).

The spelling of 42954031 in words is "forty-two million, nine hundred fifty-four thousand, thirty-one".