141431557 has 2 divisors, whose sum is σ = 141431558. Its totient is φ = 141431556.

The previous prime is 141431513. The next prime is 141431569. The reversal of 141431557 is 755134141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97792321 + 43639236 = 9889^2 + 6606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141431557 is a prime.

It is the 11893-rd Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141431597) by changing a digit.

It is a nontrivial repunit in base 11892.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70715778 + 70715779.

It is an arithmetic number, because the mean of its divisors is an integer number (70715779).

Almost surely, 2^141431557 is an apocalyptic number.

It is an amenable number.

141431557 is a deficient number, since it is larger than the sum of its proper divisors (1).

141431557 is an equidigital number, since it uses as much as digits as its factorization.

141431557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 141431557 is about 11892.5000315325. The cubic root of 141431557 is about 521.0132573012.

Adding to 141431557 its reverse (755134141), we get a palindrome (896565698).

The spelling of 141431557 in words is "one hundred forty-one million, four hundred thirty-one thousand, five hundred fifty-seven".