42634541 has 2 divisors, whose sum is σ = 42634542. Its totient is φ = 42634540.

The previous prime is 42634531. The next prime is 42634567. The reversal of 42634541 is 14543624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40589641 + 2044900 = 6371^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 42634541 - 2¹⁴ = 42618157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42634511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21317270 + 21317271.

It is an arithmetic number, because the mean of its divisors is an integer number (21317271).

Almost surely, 2^42634541 is an apocalyptic number.

It is an amenable number.

42634541 is a deficient number, since it is larger than the sum of its proper divisors (1).

42634541 is an equidigital number, since it uses as much as digits as its factorization.

42634541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

The square root of 42634541 is about 6529.5130752607. The cubic root of 42634541 is about 349.3444627651.

The spelling of 42634541 in words is "forty-two million, six hundred thirty-four thousand, five hundred forty-one".