133998927749257 has 2 divisors, whose sum is σ = 133998927749258. Its totient is φ = 133998927749256.

The previous prime is 133998927749003. The next prime is 133998927749341. The reversal of 133998927749257 is 752947729899331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133959073216761 + 39854532496 = 11574069^2 + 199636^2 .

It is a cyclic number.

It is not a de Polignac number, because 133998927749257 - 2¹⁹ = 133998927224969 is a prime.

It is not a weakly prime, because it can be changed into another prime (133998927743257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66999463874628 + 66999463874629.

It is an arithmetic number, because the mean of its divisors is an integer number (66999463874629).

Almost surely, 2^{133998927749257} is an apocalyptic number.

It is an amenable number.

133998927749257 is a deficient number, since it is larger than the sum of its proper divisors (1).

133998927749257 is an equidigital number, since it uses as much as digits as its factorization.

133998927749257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12962436480, while the sum is 85.

The spelling of 133998927749257 in words is "one hundred thirty-three trillion, nine hundred ninety-eight billion, nine hundred twenty-seven million, seven hundred forty-nine thousand, two hundred fifty-seven".