190115901 has 12 divisors (see below), whose sum is σ = 283470720. Its totient is φ = 122655240.

The previous prime is 190115897. The next prime is 190115921. The reversal of 190115901 is 109511091.

It is not a de Polignac number, because 190115901 - 2² = 190115897 is a prime.

It is a super-3 number, since 3×190115901³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190115921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340431 + ... + 340988.

It is an arithmetic number, because the mean of its divisors is an integer number (23622560).

Almost surely, 2^190115901 is an apocalyptic number.

It is an amenable number.

190115901 is a deficient number, since it is larger than the sum of its proper divisors (93354819).

190115901 is a wasteful number, since it uses less digits than its factorization.

190115901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681456 (or 681453 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 27.

The square root of 190115901 is about 13788.2522822873. The cubic root of 190115901 is about 575.0065793828.

Adding to 190115901 its reverse (109511091), we get a palindrome (299626992).

The spelling of 190115901 in words is "one hundred ninety million, one hundred fifteen thousand, nine hundred one".