129487034 has 4 divisors (see below), whose sum is σ = 194230554. Its totient is φ = 64743516.

The previous prime is 129487019. The next prime is 129487049. The reversal of 129487034 is 430784921.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (129487019) and next prime (129487049).

It can be written as a sum of positive squares in only one way, i.e., 127757809 + 1729225 = 11303^2 + 1315^2 .

It is a super-3 number, since 3×129487034³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32371757 + ... + 32371760.

Almost surely, 2^129487034 is an apocalyptic number.

129487034 is a deficient number, since it is larger than the sum of its proper divisors (64743520).

129487034 is an equidigital number, since it uses as much as digits as its factorization.

129487034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64743519.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 129487034 is about 11379.2369691469. The cubic root of 129487034 is about 505.9125206142.

The spelling of 129487034 in words is "one hundred twenty-nine million, four hundred eighty-seven thousand, thirty-four".