141661971 has 36 divisors (see below), whose sum is σ = 230812920. Its totient is φ = 83030400.

The previous prime is 141661957. The next prime is 141661979. The reversal of 141661971 is 179166141.

It is not a de Polignac number, because 141661971 - 2⁷ = 141661843 is a prime.

It is a super-2 number, since 2×141661971² = 40136228055209682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (141661979) 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 35 ways as a sum of consecutive naturals, for example, 94395 + ... + 95883.

It is an arithmetic number, because the mean of its divisors is an integer number (6411470).

Almost surely, 2^141661971 is an apocalyptic number.

141661971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

141661971 is a deficient number, since it is larger than the sum of its proper divisors (89150949).

141661971 is a wasteful number, since it uses less digits than its factorization.

141661971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568 (or 1534 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 141661971 is about 11902.1834551481. The cubic root of 141661971 is about 521.2960409964.

The spelling of 141661971 in words is "one hundred forty-one million, six hundred sixty-one thousand, nine hundred seventy-one".