240000115457 has 2 divisors, whose sum is σ = 240000115458. Its totient is φ = 240000115456.

The previous prime is 240000115409. The next prime is 240000115489. The reversal of 240000115457 is 754511000042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140043602176 + 99956513281 = 374224^2 + 316159^2 .

It is a cyclic number.

It is not a de Polignac number, because 240000115457 - 2²⁴ = 239983338241 is a prime.

It is a super-3 number, since 3×240000115457³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (240000015457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120000057728 + 120000057729.

It is an arithmetic number, because the mean of its divisors is an integer number (120000057729).

Almost surely, 2^240000115457 is an apocalyptic number.

It is an amenable number.

240000115457 is a deficient number, since it is larger than the sum of its proper divisors (1).

240000115457 is an equidigital number, since it uses as much as digits as its factorization.

240000115457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 29.

Adding to 240000115457 its reverse (754511000042), we get a palindrome (994511115499).

The spelling of 240000115457 in words is "two hundred forty billion, one hundred fifteen thousand, four hundred fifty-seven".