129474965 has 8 divisors (see below), whose sum is σ = 155924568. Its totient is φ = 103210240.

The previous prime is 129474959. The next prime is 129474967. The reversal of 129474965 is 569474921.

It can be written as a sum of positive squares in 4 ways, for example, as 32787076 + 96687889 = 5726^2 + 9833^2 .

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

It is not a de Polignac number, because 129474965 - 2¹⁶ = 129409429 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129474967) 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, 44672 + ... + 47481.

It is an arithmetic number, because the mean of its divisors is an integer number (19490571).

Almost surely, 2^129474965 is an apocalyptic number.

It is an amenable number.

129474965 is a deficient number, since it is larger than the sum of its proper divisors (26449603).

129474965 is an equidigital number, since it uses as much as digits as its factorization.

129474965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92439.

The product of its digits is 544320, while the sum is 47.

The square root of 129474965 is about 11378.7066488244. The cubic root of 129474965 is about 505.8968020574.

The spelling of 129474965 in words is "one hundred twenty-nine million, four hundred seventy-four thousand, nine hundred sixty-five".