125193814469 has 2 divisors, whose sum is σ = 125193814470. Its totient is φ = 125193814468.

The previous prime is 125193814327. The next prime is 125193814477. The reversal of 125193814469 is 964418391521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110712580225 + 14481234244 = 332735^2 + 120338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125193814469 is a prime.

It is a super-2 number, since 2×125193814469² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125193814469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125193114469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62596907234 + 62596907235.

It is an arithmetic number, because the mean of its divisors is an integer number (62596907235).

Almost surely, 2^125193814469 is an apocalyptic number.

It is an amenable number.

125193814469 is a deficient number, since it is larger than the sum of its proper divisors (1).

125193814469 is an equidigital number, since it uses as much as digits as its factorization.

125193814469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 53.

The spelling of 125193814469 in words is "one hundred twenty-five billion, one hundred ninety-three million, eight hundred fourteen thousand, four hundred sixty-nine".