141765551 has 2 divisors, whose sum is σ = 141765552. Its totient is φ = 141765550.

The previous prime is 141765541. The next prime is 141765557. The reversal of 141765551 is 155567141.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 141765551 - 2¹⁰ = 141764527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141765557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70882775 + 70882776.

It is an arithmetic number, because the mean of its divisors is an integer number (70882776).

Almost surely, 2^141765551 is an apocalyptic number.

141765551 is a deficient number, since it is larger than the sum of its proper divisors (1).

141765551 is an equidigital number, since it uses as much as digits as its factorization.

141765551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 35.

The square root of 141765551 is about 11906.5339624930. The cubic root of 141765551 is about 521.4230632986.

The spelling of 141765551 in words is "one hundred forty-one million, seven hundred sixty-five thousand, five hundred fifty-one".