129494211 has 48 divisors (see below), whose sum is σ = 223388928. Its totient is φ = 65956800.

The previous prime is 129494201. The next prime is 129494237. The reversal of 129494211 is 112494921.

It is not a de Polignac number, because 129494211 - 2⁶ = 129494147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (129494201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84946 + ... + 86456.

It is an arithmetic number, because the mean of its divisors is an integer number (4653936).

Almost surely, 2^129494211 is an apocalyptic number.

129494211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

129494211 is a deficient number, since it is larger than the sum of its proper divisors (93894717).

129494211 is a wasteful number, since it uses less digits than its factorization.

129494211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1585 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 129494211 is about 11379.5523198411. The cubic root of 129494211 is about 505.9218674113.

The spelling of 129494211 in words is "one hundred twenty-nine million, four hundred ninety-four thousand, two hundred eleven".