133401413 has 12 divisors (see below), whose sum is σ = 144242028. Its totient is φ = 123284160.

The previous prime is 133401409. The next prime is 133401439. The reversal of 133401413 is 314104331.

It can be written as a sum of positive squares in 2 ways, for example, as 28912129 + 104489284 = 5377^2 + 10222^2 .

It is not a de Polignac number, because 133401413 - 2² = 133401409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133401473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10295 + ... + 19307.

It is an arithmetic number, because the mean of its divisors is an integer number (12020169).

Almost surely, 2^133401413 is an apocalyptic number.

It is an amenable number.

133401413 is a deficient number, since it is larger than the sum of its proper divisors (10840615).

133401413 is an equidigital number, since it uses as much as digits as its factorization.

133401413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9092 (or 9073 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 133401413 is about 11549.9529436271. The cubic root of 133401413 is about 510.9598902856.

Adding to 133401413 its reverse (314104331), we get a palindrome (447505744).

The spelling of 133401413 in words is "one hundred thirty-three million, four hundred one thousand, four hundred thirteen".