91253077 has 2 divisors, whose sum is σ = 91253078. Its totient is φ = 91253076.

The previous prime is 91253039. The next prime is 91253089. The reversal of 91253077 is 77035219.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83887281 + 7365796 = 9159^2 + 2714^2 .

It is a cyclic number.

It is not a de Polignac number, because 91253077 - 2¹¹ = 91251029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91253177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45626538 + 45626539.

It is an arithmetic number, because the mean of its divisors is an integer number (45626539).

Almost surely, 2^91253077 is an apocalyptic number.

It is an amenable number.

91253077 is a deficient number, since it is larger than the sum of its proper divisors (1).

91253077 is an equidigital number, since it uses as much as digits as its factorization.

91253077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 91253077 is about 9552.6476434547. The cubic root of 91253077 is about 450.2107276417.

The spelling of 91253077 in words is "ninety-one million, two hundred fifty-three thousand, seventy-seven".