194820132037 has 2 divisors, whose sum is σ = 194820132038. Its totient is φ = 194820132036.

The previous prime is 194820131959. The next prime is 194820132043. The reversal of 194820132037 is 730231028491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177438082756 + 17382049281 = 421234^2 + 131841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194820132037 is a prime.

It is a super-2 number, since 2×194820132037² (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 (194820132137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97410066018 + 97410066019.

It is an arithmetic number, because the mean of its divisors is an integer number (97410066019).

Almost surely, 2^194820132037 is an apocalyptic number.

It is an amenable number.

194820132037 is a deficient number, since it is larger than the sum of its proper divisors (1).

194820132037 is an equidigital number, since it uses as much as digits as its factorization.

194820132037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 194820132037 in words is "one hundred ninety-four billion, eight hundred twenty million, one hundred thirty-two thousand, thirty-seven".