42915629 has 2 divisors, whose sum is σ = 42915630. Its totient is φ = 42915628.

The previous prime is 42915619. The next prime is 42915683. The reversal of 42915629 is 92651924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41860900 + 1054729 = 6470^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 42915629 - 2⁸ = 42915373 is a prime.

It is equal to p_2599751 and since 42915629 and 2599751 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 42915592 and 42915601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42915619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21457814 + 21457815.

It is an arithmetic number, because the mean of its divisors is an integer number (21457815).

Almost surely, 2^42915629 is an apocalyptic number.

It is an amenable number.

42915629 is a deficient number, since it is larger than the sum of its proper divisors (1).

42915629 is an equidigital number, since it uses as much as digits as its factorization.

42915629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 42915629 is about 6551.0021370780. The cubic root of 42915629 is about 350.1105201992.

The spelling of 42915629 in words is "forty-two million, nine hundred fifteen thousand, six hundred twenty-nine".