1030405125 has 64 divisors (see below), whose sum is σ = 1784659968. Its totient is φ = 527400000.

The previous prime is 1030405109. The next prime is 1030405141. The reversal of 1030405125 is 5215040301.

It is an interprime number because it is at equal distance from previous prime (1030405109) and next prime (1030405141).

It is not a de Polignac number, because 1030405125 - 2⁴ = 1030405109 is a prime.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1755082 + ... + 1755668.

It is an arithmetic number, because the mean of its divisors is an integer number (27885312).

Almost surely, 2^1030405125 is an apocalyptic number.

1030405125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1030405125 is a deficient number, since it is larger than the sum of its proper divisors (754254843).

1030405125 is a wasteful number, since it uses less digits than its factorization.

1030405125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1030405125 is about 32099.9240653307. The cubic root of 1030405125 is about 1010.0340232959.

Adding to 1030405125 its reverse (5215040301), we get a palindrome (6245445426).

The spelling of 1030405125 in words is "one billion, thirty million, four hundred five thousand, one hundred twenty-five".