42137461 has 4 divisors (see below), whose sum is σ = 42151500. Its totient is φ = 42123424.

The previous prime is 42137443. The next prime is 42137477. The reversal of 42137461 is 16473124.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9579025 + 32558436 = 3095^2 + 5706^2 .

It is a cyclic number.

It is not a de Polignac number, because 42137461 - 2⁵ = 42137429 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 (42177461) 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, 496 + ... + 9193.

It is an arithmetic number, because the mean of its divisors is an integer number (10537875).

Almost surely, 2^42137461 is an apocalyptic number.

It is an amenable number.

42137461 is a deficient number, since it is larger than the sum of its proper divisors (14039).

42137461 is an equidigital number, since it uses as much as digits as its factorization.

42137461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14038.

The product of its digits is 4032, while the sum is 28.

The square root of 42137461 is about 6491.3373814646. The cubic root of 42137461 is about 347.9814722377.

The spelling of 42137461 in words is "forty-two million, one hundred thirty-seven thousand, four hundred sixty-one".