42113629 has 2 divisors, whose sum is σ = 42113630. Its totient is φ = 42113628.

The previous prime is 42113611. The next prime is 42113639. The reversal of 42113629 is 92631124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37491129 + 4622500 = 6123^2 + 2150^2 .

It is a cyclic number.

It is not a de Polignac number, because 42113629 - 2⁷ = 42113501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42113597 and 42113606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42113609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21056814 + 21056815.

It is an arithmetic number, because the mean of its divisors is an integer number (21056815).

Almost surely, 2^42113629 is an apocalyptic number.

It is an amenable number.

42113629 is a deficient number, since it is larger than the sum of its proper divisors (1).

42113629 is an equidigital number, since it uses as much as digits as its factorization.

42113629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 42113629 is about 6489.5014446412. The cubic root of 42113629 is about 347.9158563684.

The spelling of 42113629 in words is "forty-two million, one hundred thirteen thousand, six hundred twenty-nine".