141569257 has 2 divisors, whose sum is σ = 141569258. Its totient is φ = 141569256.

The previous prime is 141569237. The next prime is 141569291. The reversal of 141569257 is 752965141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95179536 + 46389721 = 9756^2 + 6811^2 .

It is a cyclic number.

It is not a de Polignac number, because 141569257 - 2¹⁵ = 141536489 is a prime.

It is not a weakly prime, because it can be changed into another prime (141569237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70784628 + 70784629.

It is an arithmetic number, because the mean of its divisors is an integer number (70784629).

Almost surely, 2^141569257 is an apocalyptic number.

It is an amenable number.

141569257 is a deficient number, since it is larger than the sum of its proper divisors (1).

141569257 is an equidigital number, since it uses as much as digits as its factorization.

141569257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 141569257 is about 11898.2879860928. The cubic root of 141569257 is about 521.1822913699.

The spelling of 141569257 in words is "one hundred forty-one million, five hundred sixty-nine thousand, two hundred fifty-seven".