129470551 has 8 divisors (see below), whose sum is σ = 148321184. Its totient is φ = 110708640.

The previous prime is 129470533. The next prime is 129470557. The reversal of 129470551 is 155074921.

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

It is not a de Polignac number, because 129470551 - 2⁷ = 129470423 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 (129470557) 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, 19020 + ... + 24913.

It is an arithmetic number, because the mean of its divisors is an integer number (18540148).

Almost surely, 2^129470551 is an apocalyptic number.

129470551 is a deficient number, since it is larger than the sum of its proper divisors (18850633).

129470551 is an equidigital number, since it uses as much as digits as its factorization.

129470551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44361.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 129470551 is about 11378.5126883965. The cubic root of 129470551 is about 505.8910530596.

The spelling of 129470551 in words is "one hundred twenty-nine million, four hundred seventy thousand, five hundred fifty-one".