42061453 has 6 divisors (see below), whose sum is σ = 48928686. Its totient is φ = 36052632.

The previous prime is 42061433. The next prime is 42061463. The reversal of 42061453 is 35416024.

It can be written as a sum of positive squares in only one way, i.e., 38900169 + 3161284 = 6237^2 + 1778^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42061453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42061423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 429150 + ... + 429247.

It is an arithmetic number, because the mean of its divisors is an integer number (8154781).

Almost surely, 2^42061453 is an apocalyptic number.

It is an amenable number.

42061453 is a deficient number, since it is larger than the sum of its proper divisors (6867233).

42061453 is an equidigital number, since it uses as much as digits as its factorization.

42061453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858411 (or 858404 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42061453 is about 6485.4801672660. The cubic root of 42061453 is about 347.7721154145.

Adding to 42061453 its reverse (35416024), we get a palindrome (77477477).

The spelling of 42061453 in words is "forty-two million, sixty-one thousand, four hundred fifty-three".