45130905 has 32 divisors (see below), whose sum is σ = 80995200. Its totient is φ = 23841216.

The previous prime is 45130889. The next prime is 45130907. The reversal of 45130905 is 50903154.

It is not a de Polignac number, because 45130905 - 2⁴ = 45130889 is a prime.

It is a super-2 number, since 2×45130905² = 4073597172238050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45130907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13182 + ... + 16248.

It is an arithmetic number, because the mean of its divisors is an integer number (2531100).

Almost surely, 2^45130905 is an apocalyptic number.

45130905 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45130905 is a deficient number, since it is larger than the sum of its proper divisors (35864295).

45130905 is a wasteful number, since it uses less digits than its factorization.

45130905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190 (or 3184 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 45130905 is about 6717.9539295830. The cubic root of 45130905 is about 356.0338966378.

The spelling of 45130905 in words is "forty-five million, one hundred thirty thousand, nine hundred five".