76540157 has 2 divisors, whose sum is σ = 76540158. Its totient is φ = 76540156.

The previous prime is 76540091. The next prime is 76540181. The reversal of 76540157 is 75104567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75238276 + 1301881 = 8674^2 + 1141^2 .

It is an emirp because it is prime and its reverse (75104567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76540157 - 2⁸ = 76539901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76540357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38270078 + 38270079.

It is an arithmetic number, because the mean of its divisors is an integer number (38270079).

Almost surely, 2^76540157 is an apocalyptic number.

It is an amenable number.

76540157 is a deficient number, since it is larger than the sum of its proper divisors (1).

76540157 is an equidigital number, since it uses as much as digits as its factorization.

76540157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 76540157 is about 8748.7231639823. The cubic root of 76540157 is about 424.5835033887.

The spelling of 76540157 in words is "seventy-six million, five hundred forty thousand, one hundred fifty-seven".