129465401 has 8 divisors (see below), whose sum is σ = 142391424. Its totient is φ = 116963280.

The previous prime is 129465397. The next prime is 129465409. The reversal of 129465401 is 104564921.

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

It is a cyclic number.

It is not a de Polignac number, because 129465401 - 2² = 129465397 is a prime.

It is a super-2 number, since 2×129465401² = 33522580112181602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129465409) 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, 105335 + ... + 106556.

It is an arithmetic number, because the mean of its divisors is an integer number (17798928).

Almost surely, 2^129465401 is an apocalyptic number.

It is an amenable number.

129465401 is a deficient number, since it is larger than the sum of its proper divisors (12926023).

129465401 is a wasteful number, since it uses less digits than its factorization.

129465401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211951.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 129465401 is about 11378.2863824040. The cubic root of 129465401 is about 505.8843452962.

The spelling of 129465401 in words is "one hundred twenty-nine million, four hundred sixty-five thousand, four hundred one".