42115453 has 16 divisors (see below), whose sum is σ = 45619200. Its totient is φ = 38787840.

The previous prime is 42115441. The next prime is 42115459. The reversal of 42115453 is 35451124.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42115453 - 2⁵ = 42115421 is a prime.

It is a super-2 number, since 2×42115453² = 3547422762790418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42115459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70725 + ... + 71317.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^42115453 is an apocalyptic number.

It is an amenable number.

42115453 is a deficient number, since it is larger than the sum of its proper divisors (3503747).

42115453 is a wasteful number, since it uses less digits than its factorization.

42115453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732.

The product of its digits is 2400, while the sum is 25.

The square root of 42115453 is about 6489.6419777982. The cubic root of 42115453 is about 347.9208792029.

Adding to 42115453 its reverse (35451124), we get a palindrome (77566577).

The spelling of 42115453 in words is "forty-two million, one hundred fifteen thousand, four hundred fifty-three".