38950129 has 4 divisors (see below), whose sum is σ = 38989300. Its totient is φ = 38910960.

The previous prime is 38950117. The next prime is 38950141. The reversal of 38950129 is 92105983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92105983 = 17 ⋅5417999.

It is an interprime number because it is at equal distance from previous prime (38950117) and next prime (38950141).

It can be written as a sum of positive squares in 2 ways, for example, as 29811600 + 9138529 = 5460^2 + 3023^2 .

It is a cyclic number.

It is not a de Polignac number, because 38950129 - 2⁵ = 38950097 is a prime.

It is a super-2 number, since 2×38950129² = 3034225098233282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38950189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18054 + ... + 20095.

It is an arithmetic number, because the mean of its divisors is an integer number (9747325).

Almost surely, 2^38950129 is an apocalyptic number.

It is an amenable number.

38950129 is a deficient number, since it is larger than the sum of its proper divisors (39171).

38950129 is a wasteful number, since it uses less digits than its factorization.

38950129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39170.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 38950129 is about 6241.0038455364. The cubic root of 38950129 is about 338.9765329805.

The spelling of 38950129 in words is "thirty-eight million, nine hundred fifty thousand, one hundred twenty-nine".