42402153 has 4 divisors (see below), whose sum is σ = 56536208. Its totient is φ = 28268100.

The previous prime is 42402149. The next prime is 42402161. The reversal of 42402153 is 35120424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42402153 - 2² = 42402149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42402103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7067023 + ... + 7067028.

It is an arithmetic number, because the mean of its divisors is an integer number (14134052).

Almost surely, 2^42402153 is an apocalyptic number.

It is an amenable number.

42402153 is a deficient number, since it is larger than the sum of its proper divisors (14134055).

42402153 is a wasteful number, since it uses less digits than its factorization.

42402153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14134054.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42402153 is about 6511.6935585146. The cubic root of 42402153 is about 348.7085823298.

Adding to 42402153 its reverse (35120424), we get a palindrome (77522577).

The spelling of 42402153 in words is "forty-two million, four hundred two thousand, one hundred fifty-three".