129850149 has 16 divisors (see below), whose sum is σ = 203402304. Its totient is φ = 72643200.

The previous prime is 129850141. The next prime is 129850177. The reversal of 129850149 is 941058921.

It is not a de Polignac number, because 129850149 - 2³ = 129850141 is a prime.

It is a super-2 number, since 2×129850149² = 33722122390644402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129850141) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 150912 + ... + 151769.

It is an arithmetic number, because the mean of its divisors is an integer number (12712644).

Almost surely, 2^129850149 is an apocalyptic number.

It is an amenable number.

129850149 is a deficient number, since it is larger than the sum of its proper divisors (73552155).

129850149 is a wasteful number, since it uses less digits than its factorization.

129850149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302708.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 129850149 is about 11395.1809551231. The cubic root of 129850149 is about 506.3849822657.

The spelling of 129850149 in words is "one hundred twenty-nine million, eight hundred fifty thousand, one hundred forty-nine".