141990109 has 4 divisors (see below), whose sum is σ = 148163616. Its totient is φ = 135816604.

The previous prime is 141990091. The next prime is 141990113. The reversal of 141990109 is 901099141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 141990109 - 2⁵ = 141990077 is a prime.

It is a super-2 number, since 2×141990109² = 40322382107663762, 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 (141990209) 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, 3086719 + ... + 3086764.

It is an arithmetic number, because the mean of its divisors is an integer number (37040904).

Almost surely, 2^141990109 is an apocalyptic number.

It is an amenable number.

141990109 is a deficient number, since it is larger than the sum of its proper divisors (6173507).

141990109 is an equidigital number, since it uses as much as digits as its factorization.

141990109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6173506.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 141990109 is about 11915.9602634450. The cubic root of 141990109 is about 521.6982311139.

The spelling of 141990109 in words is "one hundred forty-one million, nine hundred ninety thousand, one hundred nine".