1051517041138 has 4 divisors (see below), whose sum is σ = 1577275561710. Its totient is φ = 525758520568.

The previous prime is 1051517041123. The next prime is 1051517041139. The reversal of 1051517041138 is 8311407151501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 897894590329 + 153622450809 = 947573^2 + 391947^2 .

It is a super-2 number, since 2×1051517041138² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051517041097 and 1051517041106.

It is not an unprimeable number, because it can be changed into a prime (1051517041139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262879260283 + ... + 262879260286.

Almost surely, 2^{1051517041138} is an apocalyptic number.

1051517041138 is a deficient number, since it is larger than the sum of its proper divisors (525758520572).

1051517041138 is an equidigital number, since it uses as much as digits as its factorization.

1051517041138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525758520571.

The product of its (nonzero) digits is 16800, while the sum is 37.

The spelling of 1051517041138 in words is "one trillion, fifty-one billion, five hundred seventeen million, forty-one thousand, one hundred thirty-eight".