42100513 has 8 divisors (see below), whose sum is σ = 51816128. Its totient is φ = 33310224.

The previous prime is 42100501. The next prime is 42100519. The reversal of 42100513 is 31500124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42100513 - 2⁹ = 42100001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42100519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231231 + ... + 231412.

It is an arithmetic number, because the mean of its divisors is an integer number (6477016).

Almost surely, 2^42100513 is an apocalyptic number.

It is an amenable number.

42100513 is a deficient number, since it is larger than the sum of its proper divisors (9715615).

42100513 is a wasteful number, since it uses less digits than its factorization.

42100513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462663.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 42100513 is about 6488.4908106585. The cubic root of 42100513 is about 347.8797339515.

Adding to 42100513 its reverse (31500124), we get a palindrome (73600637).

The spelling of 42100513 in words is "forty-two million, one hundred thousand, five hundred thirteen".