133123877 has 2 divisors, whose sum is σ = 133123878. Its totient is φ = 133123876.

The previous prime is 133123853. The next prime is 133123933. The reversal of 133123877 is 778321331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74891716 + 58232161 = 8654^2 + 7631^2 .

It is an emirp because it is prime and its reverse (778321331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133123877 - 2¹⁰ = 133122853 is a prime.

It is a super-2 number, since 2×133123877² = 35443933255022258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133123847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66561938 + 66561939.

It is an arithmetic number, because the mean of its divisors is an integer number (66561939).

Almost surely, 2^133123877 is an apocalyptic number.

It is an amenable number.

133123877 is a deficient number, since it is larger than the sum of its proper divisors (1).

133123877 is an equidigital number, since it uses as much as digits as its factorization.

133123877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 133123877 is about 11537.9320937506. The cubic root of 133123877 is about 510.6053007856.

The spelling of 133123877 in words is "one hundred thirty-three million, one hundred twenty-three thousand, eight hundred seventy-seven".