190129103 has 4 divisors (see below), whose sum is σ = 190219968. Its totient is φ = 190038240.

The previous prime is 190129081. The next prime is 190129111. The reversal of 190129103 is 301921091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301921091 = 47 ⋅6423853.

It is a cyclic number.

It is not a de Polignac number, because 190129103 - 2¹⁸ = 189866959 is a prime.

It is a super-2 number, since 2×190129103² = 72298151615169218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190129123) 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, 42218 + ... + 46503.

It is an arithmetic number, because the mean of its divisors is an integer number (47554992).

Almost surely, 2^190129103 is an apocalyptic number.

190129103 is a deficient number, since it is larger than the sum of its proper divisors (90865).

190129103 is an equidigital number, since it uses as much as digits as its factorization.

190129103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90864.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 190129103 is about 13788.7310148541. The cubic root of 190129103 is about 575.0198889151.

The spelling of 190129103 in words is "one hundred ninety million, one hundred twenty-nine thousand, one hundred three".