1025012345 has 16 divisors (see below), whose sum is σ = 1424991360. Its totient is φ = 693235584.

The previous prime is 1025012327. The next prime is 1025012363. The reversal of 1025012345 is 5432105201.

It is an interprime number because it is at equal distance from previous prime (1025012327) and next prime (1025012363).

It is a cyclic number.

It is not a de Polignac number, because 1025012345 - 2¹⁰ = 1025011321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1025012345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198035 + ... + 203144.

It is an arithmetic number, because the mean of its divisors is an integer number (89061960).

Almost surely, 2^1025012345 is an apocalyptic number.

It is an amenable number.

1025012345 is a deficient number, since it is larger than the sum of its proper divisors (399979015).

1025012345 is an equidigital number, since it uses as much as digits as its factorization.

1025012345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401264.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1025012345 is about 32015.8139830928. The cubic root of 1025012345 is about 1008.2688854072.

Adding to 1025012345 its reverse (5432105201), we get a palindrome (6457117546).

The spelling of 1025012345 in words is "one billion, twenty-five million, twelve thousand, three hundred forty-five".