1125400001 has 16 divisors (see below), whose sum is σ = 1294444800. Its totient is φ = 967654800.

The previous prime is 1125399991. The next prime is 1125400057. The reversal of 1125400001 is 1000045211.

It is not a de Polignac number, because 1125400001 - 2¹⁴ = 1125383617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1125430001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133646 + ... + 141816.

It is an arithmetic number, because the mean of its divisors is an integer number (80902800).

Almost surely, 2^1125400001 is an apocalyptic number.

1125400001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1125400001 is a deficient number, since it is larger than the sum of its proper divisors (169044799).

1125400001 is a wasteful number, since it uses less digits than its factorization.

1125400001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8860.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1125400001 is about 33546.9819954046. The cubic root of 1125400001 is about 1040.1651614544.

Adding to 1125400001 its reverse (1000045211), we get a palindrome (2125445212).

The spelling of 1125400001 in words is "one billion, one hundred twenty-five million, four hundred thousand, one".