1025140931 has 2 divisors, whose sum is σ = 1025140932. Its totient is φ = 1025140930.

The previous prime is 1025140901. The next prime is 1025140957. The reversal of 1025140931 is 1390415201.

1025140931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (1025140957) can be obtained adding 1025140931 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1025140931 - 2¹⁴ = 1025124547 is a prime.

It is a super-2 number, since 2×1025140931² = 2101827856823093522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1025140931.

It is not a weakly prime, because it can be changed into another prime (1025140901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512570465 + 512570466.

It is an arithmetic number, because the mean of its divisors is an integer number (512570466).

Almost surely, 2^1025140931 is an apocalyptic number.

1025140931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025140931 is an equidigital number, since it uses as much as digits as its factorization.

1025140931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1025140931 is about 32017.8220839582. The cubic root of 1025140931 is about 1008.3110454985.

The spelling of 1025140931 in words is "one billion, twenty-five million, one hundred forty thousand, nine hundred thirty-one".