190957333381 has 2 divisors, whose sum is σ = 190957333382. Its totient is φ = 190957333380.

The previous prime is 190957333361. The next prime is 190957333387. The reversal of 190957333381 is 183333759091.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129668409025 + 61288924356 = 360095^2 + 247566^2 .

It is a cyclic number.

It is not a de Polignac number, because 190957333381 - 2⁹ = 190957332869 is a prime.

It is a super-5 number, since 5×190957333381⁵ (a number of 58 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190957333387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95478666690 + 95478666691.

It is an arithmetic number, because the mean of its divisors is an integer number (95478666691).

Almost surely, 2^190957333381 is an apocalyptic number.

It is an amenable number.

190957333381 is a deficient number, since it is larger than the sum of its proper divisors (1).

190957333381 is an equidigital number, since it uses as much as digits as its factorization.

190957333381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1837080, while the sum is 52.

The spelling of 190957333381 in words is "one hundred ninety billion, nine hundred fifty-seven million, three hundred thirty-three thousand, three hundred eighty-one".