133430451 has 24 divisors (see below), whose sum is σ = 223491072. Its totient is φ = 69313200.

The previous prime is 133430449. The next prime is 133430459. The reversal of 133430451 is 154034331.

It is a happy number.

It is not a de Polignac number, because 133430451 - 2¹ = 133430449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133430459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23715 + ... + 28796.

It is an arithmetic number, because the mean of its divisors is an integer number (9312128).

Almost surely, 2^133430451 is an apocalyptic number.

133430451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133430451 is a deficient number, since it is larger than the sum of its proper divisors (90060621).

133430451 is a wasteful number, since it uses less digits than its factorization.

133430451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52543 (or 52532 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 133430451 is about 11551.2099366257. The cubic root of 133430451 is about 510.9969617991.

Adding to 133430451 its reverse (154034331), we get a palindrome (287464782).

The spelling of 133430451 in words is "one hundred thirty-three million, four hundred thirty thousand, four hundred fifty-one".