133527389 has 2 divisors, whose sum is σ = 133527390. Its totient is φ = 133527388.

The previous prime is 133527349. The next prime is 133527409. The reversal of 133527389 is 983725331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79798489 + 53728900 = 8933^2 + 7330^2 .

It is a cyclic number.

It is not a de Polignac number, because 133527389 - 2²⁴ = 116750173 is a prime.

It is a super-2 number, since 2×133527389² = 35659127226314642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133527319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66763694 + 66763695.

It is an arithmetic number, because the mean of its divisors is an integer number (66763695).

Almost surely, 2^133527389 is an apocalyptic number.

It is an amenable number.

133527389 is a deficient number, since it is larger than the sum of its proper divisors (1).

133527389 is an equidigital number, since it uses as much as digits as its factorization.

133527389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 133527389 is about 11555.4051854533. The cubic root of 133527389 is about 511.1206792667.

The spelling of 133527389 in words is "one hundred thirty-three million, five hundred twenty-seven thousand, three hundred eighty-nine".