42154927 has 2 divisors, whose sum is σ = 42154928. Its totient is φ = 42154926.

The previous prime is 42154919. The next prime is 42154933. The reversal of 42154927 is 72945124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42154927 - 2³ = 42154919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42154892 and 42154901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42154727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21077463 + 21077464.

It is an arithmetic number, because the mean of its divisors is an integer number (21077464).

Almost surely, 2^42154927 is an apocalyptic number.

42154927 is a deficient number, since it is larger than the sum of its proper divisors (1).

42154927 is an equidigital number, since it uses as much as digits as its factorization.

42154927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 42154927 is about 6492.6825734822. The cubic root of 42154927 is about 348.0295450980.

The spelling of 42154927 in words is "forty-two million, one hundred fifty-four thousand, nine hundred twenty-seven".