141661011 has 4 divisors (see below), whose sum is σ = 188881352. Its totient is φ = 94440672.

The previous prime is 141660991. The next prime is 141661019. The reversal of 141661011 is 110166141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110166141 = 3 ⋅36722047.

It is not a de Polignac number, because 141661011 - 2²¹ = 139563859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141661019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23610166 + ... + 23610171.

It is an arithmetic number, because the mean of its divisors is an integer number (47220338).

Almost surely, 2^141661011 is an apocalyptic number.

141661011 is a deficient number, since it is larger than the sum of its proper divisors (47220341).

141661011 is an equidigital number, since it uses as much as digits as its factorization.

141661011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47220340.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 141661011 is about 11902.1431263449. The cubic root of 141661011 is about 521.2948634389.

The spelling of 141661011 in words is "one hundred forty-one million, six hundred sixty-one thousand, eleven".