129950290 has 16 divisors (see below), whose sum is σ = 240233112. Its totient is φ = 50575104.

The previous prime is 129950287. The next prime is 129950309. The reversal of 129950290 is 92059921.

It can be written as a sum of positive squares in 4 ways, for example, as 129072321 + 877969 = 11361^2 + 937^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 175239 + ... + 175978.

Almost surely, 2^129950290 is an apocalyptic number.

129950290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129950290 is a deficient number, since it is larger than the sum of its proper divisors (110282822).

129950290 is a wasteful number, since it uses less digits than its factorization.

129950290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351261.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 129950290 is about 11399.5741148518. The cubic root of 129950290 is about 506.5151242501.

The spelling of 129950290 in words is "one hundred twenty-nine million, nine hundred fifty thousand, two hundred ninety".