141927661 has 4 divisors (see below), whose sum is σ = 143183772. Its totient is φ = 140671552.

The previous prime is 141927647. The next prime is 141927683. The reversal of 141927661 is 166729141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57471561 + 84456100 = 7581^2 + 9190^2 .

It is a cyclic number.

It is not a de Polignac number, because 141927661 - 2⁵ = 141927629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 141927661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141927601) 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, 627886 + ... + 628111.

It is an arithmetic number, because the mean of its divisors is an integer number (35795943).

Almost surely, 2^141927661 is an apocalyptic number.

It is an amenable number.

141927661 is a deficient number, since it is larger than the sum of its proper divisors (1256111).

141927661 is a wasteful number, since it uses less digits than its factorization.

141927661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256110.

The product of its digits is 18144, while the sum is 37.

The square root of 141927661 is about 11913.3396241356. The cubic root of 141927661 is about 521.6217380195.

The spelling of 141927661 in words is "one hundred forty-one million, nine hundred twenty-seven thousand, six hundred sixty-one".