107921530 has 16 divisors (see below), whose sum is σ = 196183944. Its totient is φ = 42740800.

The previous prime is 107921507. The next prime is 107921533. The reversal of 107921530 is 35129701.

It can be written as a sum of positive squares in 4 ways, for example, as 88003161 + 19918369 = 9381^2 + 4463^2 .

It is not an unprimeable number, because it can be changed into a prime (107921533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52417 + ... + 54436.

Almost surely, 2^107921530 is an apocalyptic number.

107921530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

107921530 is a deficient number, since it is larger than the sum of its proper divisors (88262414).

107921530 is a wasteful number, since it uses less digits than its factorization.

107921530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106961.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 107921530 is about 10388.5287697537. The cubic root of 107921530 is about 476.1049512007.

The spelling of 107921530 in words is "one hundred seven million, nine hundred twenty-one thousand, five hundred thirty".