190121104 has 20 divisors (see below), whose sum is σ = 369482800. Its totient is φ = 94770720.

The previous prime is 190121101. The next prime is 190121117. The reversal of 190121104 is 401121091.

It is a super-2 number, since 2×190121104² = 72292068372357632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190121101) 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, 12654 + ... + 23245.

It is an arithmetic number, because the mean of its divisors is an integer number (18474140).

Almost surely, 2^190121104 is an apocalyptic number.

It is an amenable number.

190121104 is a deficient number, since it is larger than the sum of its proper divisors (179361696).

190121104 is a wasteful number, since it uses less digits than its factorization.

190121104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36238 (or 36232 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 190121104 is about 13788.4409561052. The cubic root of 190121104 is about 575.0118248356.

Adding to 190121104 its reverse (401121091), we get a palindrome (591242195).

It can be divided in two parts, 1901 and 21104, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 190121104 in words is "one hundred ninety million, one hundred twenty-one thousand, one hundred four".