307105140 has 48 divisors (see below), whose sum is σ = 879899328. Its totient is φ = 79989504.

The previous prime is 307105133. The next prime is 307105193. The reversal of 307105140 is 41501703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56937 + ... + 62096.

It is an arithmetic number, because the mean of its divisors is an integer number (18331236).

Almost surely, 2^307105140 is an apocalyptic number.

307105140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

307105140 is an abundant number, since it is smaller than the sum of its proper divisors (572794188).

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

307105140 is a wasteful number, since it uses less digits than its factorization.

307105140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119088 (or 119086 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 307105140 is about 17524.4155394695. The cubic root of 307105140 is about 674.6766736830.

Adding to 307105140 its reverse (41501703), we get a palindrome (348606843).

The spelling of 307105140 in words is "three hundred seven million, one hundred five thousand, one hundred forty".