1001051125 has 8 divisors (see below), whose sum is σ = 1249311960. Its totient is φ = 800840800.

The previous prime is 1001051123. The next prime is 1001051141. The reversal of 1001051125 is 5211501001.

It can be written as a sum of positive squares in 4 ways, for example, as 3944196 + 997106929 = 1986^2 + 31577^2 .

It is not a de Polignac number, because 1001051125 - 2¹ = 1001051123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001051099 and 1001051108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001051123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4004080 + ... + 4004329.

It is an arithmetic number, because the mean of its divisors is an integer number (156163995).

Almost surely, 2^1001051125 is an apocalyptic number.

It is an amenable number.

1001051125 is a deficient number, since it is larger than the sum of its proper divisors (248260835).

1001051125 is an frugal number, since it uses more digits than its factorization.

1001051125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008424 (or 8008414 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 1001051125 is about 31639.3919821478. The cubic root of 1001051125 is about 1000.3502523090.

Adding to 1001051125 its reverse (5211501001), we get a palindrome (6212552126).

The spelling of 1001051125 in words is "one billion, one million, fifty-one thousand, one hundred twenty-five".