140430131244257 has 2 divisors, whose sum is σ = 140430131244258. Its totient is φ = 140430131244256.

The previous prime is 140430131244199. The next prime is 140430131244323. The reversal of 140430131244257 is 752442131034041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136447069275136 + 3983061969121 = 11681056^2 + 1995761^2 .

It is a cyclic number.

It is not a de Polignac number, because 140430131244257 - 2²⁶ = 140430064135393 is a prime.

It is a super-2 number, since 2×140430131244257² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140430331244257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70215065622128 + 70215065622129.

It is an arithmetic number, because the mean of its divisors is an integer number (70215065622129).

Almost surely, 2^{140430131244257} is an apocalyptic number.

It is an amenable number.

140430131244257 is a deficient number, since it is larger than the sum of its proper divisors (1).

140430131244257 is an equidigital number, since it uses as much as digits as its factorization.

140430131244257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 41.

Adding to 140430131244257 its reverse (752442131034041), we get a palindrome (892872262278298).

The spelling of 140430131244257 in words is "one hundred forty trillion, four hundred thirty billion, one hundred thirty-one million, two hundred forty-four thousand, two hundred fifty-seven".