133402043 has 4 divisors (see below), whose sum is σ = 141249240. Its totient is φ = 125554848.

The previous prime is 133402019. The next prime is 133402079. The reversal of 133402043 is 340204331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340204331 = 4019 ⋅84649.

It is a cyclic number.

It is not a de Polignac number, because 133402043 - 2¹⁰ = 133401019 is a prime.

It is a super-2 number, since 2×133402043² = 35592210153147698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133402343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3923573 + ... + 3923606.

It is an arithmetic number, because the mean of its divisors is an integer number (35312310).

Almost surely, 2^133402043 is an apocalyptic number.

133402043 is a deficient number, since it is larger than the sum of its proper divisors (7847197).

133402043 is an equidigital number, since it uses as much as digits as its factorization.

133402043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847196.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 133402043 is about 11549.9802164333. The cubic root of 133402043 is about 510.9606946355.

Adding to 133402043 its reverse (340204331), we get a palindrome (473606374).

The spelling of 133402043 in words is "one hundred thirty-three million, four hundred two thousand, forty-three".