1930125645 has 128 divisors (see below), whose sum is σ = 4049740800. Its totient is φ = 853991424.

The previous prime is 1930125607. The next prime is 1930125647. The reversal of 1930125645 is 5465210391.

1930125645 is a `hidden beast` number, since 1 + 9 + 3 + 0 + 1 + 2 + 5 + 645 = 666.

It is not a de Polignac number, because 1930125645 - 2¹⁴ = 1930109261 is a prime.

It is a super-3 number, since 3×1930125645³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930125647) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4457349 + ... + 4457781.

It is an arithmetic number, because the mean of its divisors is an integer number (31638600).

Almost surely, 2^1930125645 is an apocalyptic number.

1930125645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1930125645 is an abundant number, since it is smaller than the sum of its proper divisors (2119615155).

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

1930125645 is a wasteful number, since it uses less digits than its factorization.

1930125645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1930125645 is about 43933.1952514269. The cubic root of 1930125645 is about 1245.0740847190.

The spelling of 1930125645 in words is "one billion, nine hundred thirty million, one hundred twenty-five thousand, six hundred forty-five".