541506157 has 2 divisors, whose sum is σ = 541506158. Its totient is φ = 541506156.

The previous prime is 541506143. The next prime is 541506169. The reversal of 541506157 is 751605145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539818756 + 1687401 = 23234^2 + 1299^2 .

It is a cyclic number.

It is not a de Polignac number, because 541506157 - 2¹¹ = 541504109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541506257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270753078 + 270753079.

It is an arithmetic number, because the mean of its divisors is an integer number (270753079).

Almost surely, 2^541506157 is an apocalyptic number.

It is an amenable number.

541506157 is a deficient number, since it is larger than the sum of its proper divisors (1).

541506157 is an equidigital number, since it uses as much as digits as its factorization.

541506157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 541506157 is about 23270.2848499970. The cubic root of 541506157 is about 815.0816820036.

The spelling of 541506157 in words is "five hundred forty-one million, five hundred six thousand, one hundred fifty-seven".