141257257 has 4 divisors (see below), whose sum is σ = 141676756. Its totient is φ = 140837760.

The previous prime is 141257203. The next prime is 141257261. The reversal of 141257257 is 752752141.

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 96353856 + 44903401 = 9816^2 + 6701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141257257 is a prime.

It is a super-2 number, since 2×141257257² = 39907225310328098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141257357) 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 3 ways as a sum of consecutive naturals, for example, 209244 + ... + 209917.

It is an arithmetic number, because the mean of its divisors is an integer number (35419189).

Almost surely, 2^141257257 is an apocalyptic number.

It is an amenable number.

141257257 is a deficient number, since it is larger than the sum of its proper divisors (419499).

141257257 is an equidigital number, since it uses as much as digits as its factorization.

141257257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419498.

The product of its digits is 19600, while the sum is 34.

The square root of 141257257 is about 11885.1696243680. The cubic root of 141257257 is about 520.7991373787.

The spelling of 141257257 in words is "one hundred forty-one million, two hundred fifty-seven thousand, two hundred fifty-seven".