133420407 has 8 divisors (see below), whose sum is σ = 178133760. Its totient is φ = 88827000.

The previous prime is 133420393. The next prime is 133420423. The reversal of 133420407 is 704024331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133420407 - 2⁸ = 133420151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133420457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27357 + ... + 31862.

It is an arithmetic number, because the mean of its divisors is an integer number (22266720).

Almost surely, 2^133420407 is an apocalyptic number.

133420407 is a deficient number, since it is larger than the sum of its proper divisors (44713353).

133420407 is an equidigital number, since it uses as much as digits as its factorization.

133420407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59973.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 133420407 is about 11550.7751687928. The cubic root of 133420407 is about 510.9841396829.

Adding to 133420407 its reverse (704024331), we get a palindrome (837444738).

It can be divided in two parts, 13 and 3420407, that added together give a triangular number (3420420 = T₂₆₁₅).

The spelling of 133420407 in words is "one hundred thirty-three million, four hundred twenty thousand, four hundred seven".