75132291181 has 2 divisors, whose sum is σ = 75132291182. Its totient is φ = 75132291180.

The previous prime is 75132291173. The next prime is 75132291239. The reversal of 75132291181 is 18119223157.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64003940100 + 11128351081 = 252990^2 + 105491^2 .

It is a cyclic number.

It is not a de Polignac number, because 75132291181 - 2³ = 75132291173 is a prime.

It is a super-2 number, since 2×75132291181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75132291151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37566145590 + 37566145591.

It is an arithmetic number, because the mean of its divisors is an integer number (37566145591).

Almost surely, 2^75132291181 is an apocalyptic number.

It is an amenable number.

75132291181 is a deficient number, since it is larger than the sum of its proper divisors (1).

75132291181 is an equidigital number, since it uses as much as digits as its factorization.

75132291181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 40.

The spelling of 75132291181 in words is "seventy-five billion, one hundred thirty-two million, two hundred ninety-one thousand, one hundred eighty-one".