42522129 has 12 divisors (see below), whose sum is σ = 66145716. Its totient is φ = 26167392.

The previous prime is 42522127. The next prime is 42522131. The reversal of 42522129 is 92122524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42522127) and next prime (42522131).

It can be written as a sum of positive squares in 2 ways, for example, as 10712529 + 31809600 = 3273^2 + 5640^2 .

It is not a de Polignac number, because 42522129 - 2¹ = 42522127 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42522127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181602 + ... + 181835.

It is an arithmetic number, because the mean of its divisors is an integer number (5512143).

Almost surely, 2^42522129 is an apocalyptic number.

It is an amenable number.

42522129 is a deficient number, since it is larger than the sum of its proper divisors (23623587).

42522129 is a wasteful number, since it uses less digits than its factorization.

42522129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363456 (or 363453 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 42522129 is about 6520.8994011563. The cubic root of 42522129 is about 349.0371604890.

The spelling of 42522129 in words is "forty-two million, five hundred twenty-two thousand, one hundred twenty-nine".