1125725640407 has 2 divisors, whose sum is σ = 1125725640408. Its totient is φ = 1125725640406.

The previous prime is 1125725640379. The next prime is 1125725640527. The reversal of 1125725640407 is 7040465275211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1125725640407 is a prime.

It is a super-2 number, since 2×1125725640407² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125725640607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562862820203 + 562862820204.

It is an arithmetic number, because the mean of its divisors is an integer number (562862820204).

Almost surely, 2^{1125725640407} is an apocalyptic number.

1125725640407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125725640407 is an equidigital number, since it uses as much as digits as its factorization.

1125725640407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 1125725640407 in words is "one trillion, one hundred twenty-five billion, seven hundred twenty-five million, six hundred forty thousand, four hundred seven".