129601480 has 16 divisors (see below), whose sum is σ = 291603420. Its totient is φ = 51840576.

The previous prime is 129601477. The next prime is 129601487. The reversal of 129601480 is 84106921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 108201604 + 21399876 = 10402^2 + 4626^2 .

It is not an unprimeable number, because it can be changed into a prime (129601487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619979 + ... + 1620058.

Almost surely, 2^129601480 is an apocalyptic number.

129601480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129601480 is an abundant number, since it is smaller than the sum of its proper divisors (162001940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129601480 is a wasteful number, since it uses less digits than its factorization.

129601480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240048 (or 3240044 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 129601480 is about 11384.2645787947. The cubic root of 129601480 is about 506.0615255323.

The spelling of 129601480 in words is "one hundred twenty-nine million, six hundred one thousand, four hundred eighty".