141491257 has 2 divisors, whose sum is σ = 141491258. Its totient is φ = 141491256.

The previous prime is 141491237. The next prime is 141491267. The reversal of 141491257 is 752194141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124010496 + 17480761 = 11136^2 + 4181^2 .

It is a cyclic number.

It is not a de Polignac number, because 141491257 - 2¹¹ = 141489209 is a prime.

It is not a weakly prime, because it can be changed into another prime (141491237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70745628 + 70745629.

It is an arithmetic number, because the mean of its divisors is an integer number (70745629).

Almost surely, 2^141491257 is an apocalyptic number.

It is an amenable number.

141491257 is a deficient number, since it is larger than the sum of its proper divisors (1).

141491257 is an equidigital number, since it uses as much as digits as its factorization.

141491257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 141491257 is about 11895.0097519926. The cubic root of 141491257 is about 521.0865556905.

The spelling of 141491257 in words is "one hundred forty-one million, four hundred ninety-one thousand, two hundred fifty-seven".