42612541 has 2 divisors, whose sum is σ = 42612542. Its totient is φ = 42612540.

The previous prime is 42612533. The next prime is 42612547. The reversal of 42612541 is 14521624.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38007225 + 4605316 = 6165^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 42612541 - 2³ = 42612533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42612547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21306270 + 21306271.

It is an arithmetic number, because the mean of its divisors is an integer number (21306271).

Almost surely, 2^42612541 is an apocalyptic number.

It is an amenable number.

42612541 is a deficient number, since it is larger than the sum of its proper divisors (1).

42612541 is an equidigital number, since it uses as much as digits as its factorization.

42612541 is an evil number, because the sum of its binary digits is even.

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

The square root of 42612541 is about 6527.8281993325. The cubic root of 42612541 is about 349.2843636035.

The spelling of 42612541 in words is "forty-two million, six hundred twelve thousand, five hundred forty-one".