1945729130 has 16 divisors (see below), whose sum is σ = 3502946304. Its totient is φ = 778150800.

The previous prime is 1945729127. The next prime is 1945729133. The reversal of 1945729130 is 319275491.

It is an interprime number because it is at equal distance from previous prime (1945729127) and next prime (1945729133).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1945729133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54455 + ... + 82805.

It is an arithmetic number, because the mean of its divisors is an integer number (218934144).

Almost surely, 2^1945729130 is an apocalyptic number.

1945729130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1945729130 is a deficient number, since it is larger than the sum of its proper divisors (1557217174).

1945729130 is a wasteful number, since it uses less digits than its factorization.

1945729130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35221.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 1945729130 is about 44110.4197440922. The cubic root of 1945729130 is about 1248.4202186739.

The spelling of 1945729130 in words is "one billion, nine hundred forty-five million, seven hundred twenty-nine thousand, one hundred thirty".