1025546140 has 48 divisors (see below), whose sum is σ = 2243052000. Its totient is φ = 393381632.

The previous prime is 1025546129. The next prime is 1025546141. The reversal of 1025546140 is 416455201.

1025546140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1025546099 and 1025546108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025546141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80487 + ... + 92353.

It is an arithmetic number, because the mean of its divisors is an integer number (46730250).

Almost surely, 2^1025546140 is an apocalyptic number.

1025546140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025546140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1121526000).

1025546140 is an abundant number, since it is smaller than the sum of its proper divisors (1217505860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025546140 is a wasteful number, since it uses less digits than its factorization.

1025546140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12054 (or 12052 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1025546140 is about 32024.1493251577. The cubic root of 1025546140 is about 1008.4438802067.

The spelling of 1025546140 in words is "one billion, twenty-five million, five hundred forty-six thousand, one hundred forty".