129495654 has 24 divisors (see below), whose sum is σ = 281840832. Its totient is φ = 42970320.

The previous prime is 129495631. The next prime is 129495673. The reversal of 129495654 is 456594921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12117 + ... + 20144.

It is an arithmetic number, because the mean of its divisors is an integer number (11743368).

Almost surely, 2^129495654 is an apocalyptic number.

129495654 is an abundant number, since it is smaller than the sum of its proper divisors (152345178).

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

129495654 is a wasteful number, since it uses less digits than its factorization.

129495654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32492 (or 32489 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 129495654 is about 11379.6157228616. The cubic root of 129495654 is about 505.9237466267.

The spelling of 129495654 in words is "one hundred twenty-nine million, four hundred ninety-five thousand, six hundred fifty-four".