141420257 has 4 divisors (see below), whose sum is σ = 154276656. Its totient is φ = 128563860.

The previous prime is 141420247. The next prime is 141420281. The reversal of 141420257 is 752024141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 141420257 - 2⁴ = 141420241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141420217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6428183 + ... + 6428204.

It is an arithmetic number, because the mean of its divisors is an integer number (38569164).

Almost surely, 2^141420257 is an apocalyptic number.

It is an amenable number.

141420257 is a deficient number, since it is larger than the sum of its proper divisors (12856399).

141420257 is a wasteful number, since it uses less digits than its factorization.

141420257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12856398.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 141420257 is about 11892.0249327017. The cubic root of 141420257 is about 520.9993810802. Note that the first 3 decimals are identical.

Adding to 141420257 its reverse (752024141), we get a palindrome (893444398).

The spelling of 141420257 in words is "one hundred forty-one million, four hundred twenty thousand, two hundred fifty-seven".