129361406 has 16 divisors (see below), whose sum is σ = 197259840. Its totient is φ = 63616800.

The previous prime is 129361399. The next prime is 129361423. The reversal of 129361406 is 604163921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29675 + ... + 33753.

It is an arithmetic number, because the mean of its divisors is an integer number (12328740).

Almost surely, 2^129361406 is an apocalyptic number.

129361406 is a deficient number, since it is larger than the sum of its proper divisors (67898434).

129361406 is a wasteful number, since it uses less digits than its factorization.

129361406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 129361406 is about 11373.7155758354. The cubic root of 129361406 is about 505.7488559819.

The spelling of 129361406 in words is "one hundred twenty-nine million, three hundred sixty-one thousand, four hundred six".