133351249 has 2 divisors, whose sum is σ = 133351250. Its totient is φ = 133351248.

The previous prime is 133351201. The next prime is 133351261. The reversal of 133351249 is 942153331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96530625 + 36820624 = 9825^2 + 6068^2 .

It is a cyclic number.

It is not a de Polignac number, because 133351249 - 2¹³ = 133343057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133351249.

It is not a weakly prime, because it can be changed into another prime (133351849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66675624 + 66675625.

It is an arithmetic number, because the mean of its divisors is an integer number (66675625).

Almost surely, 2^133351249 is an apocalyptic number.

It is an amenable number.

133351249 is a deficient number, since it is larger than the sum of its proper divisors (1).

133351249 is an equidigital number, since it uses as much as digits as its factorization.

133351249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 31.

The square root of 133351249 is about 11547.7811288576. The cubic root of 133351249 is about 510.8958354782.

The spelling of 133351249 in words is "one hundred thirty-three million, three hundred fifty-one thousand, two hundred forty-nine".