129149050 has 12 divisors (see below), whose sum is σ = 240217326. Its totient is φ = 51659600.

The previous prime is 129149011. The next prime is 129149077. The reversal of 129149050 is 50941921.

It can be written as a sum of positive squares in 3 ways, for example, as 117267241 + 11881809 = 10829^2 + 3447^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1291441 + ... + 1291540.

Almost surely, 2^129149050 is an apocalyptic number.

129149050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129149050 is a deficient number, since it is larger than the sum of its proper divisors (111068276).

129149050 is a wasteful number, since it uses less digits than its factorization.

129149050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582993 (or 2582988 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 129149050 is about 11364.3763577242. The cubic root of 129149050 is about 505.4719634407.

The spelling of 129149050 in words is "one hundred twenty-nine million, one hundred forty-nine thousand, fifty".