42125461 has 4 divisors (see below), whose sum is σ = 48143392. Its totient is φ = 36107532.

The previous prime is 42125437. The next prime is 42125477. The reversal of 42125461 is 16452124.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 42125461 - 2⁷ = 42125333 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 (42125431) 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, 3008955 + ... + 3008968.

It is an arithmetic number, because the mean of its divisors is an integer number (12035848).

Almost surely, 2^42125461 is an apocalyptic number.

It is an amenable number.

42125461 is a deficient number, since it is larger than the sum of its proper divisors (6017931).

42125461 is an equidigital number, since it uses as much as digits as its factorization.

42125461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6017930.

The product of its digits is 1920, while the sum is 25.

The square root of 42125461 is about 6490.4130068895. The cubic root of 42125461 is about 347.9484361219.

Adding to 42125461 its reverse (16452124), we get a palindrome (58577585).

The spelling of 42125461 in words is "forty-two million, one hundred twenty-five thousand, four hundred sixty-one".