101545930 has 48 divisors (see below), whose sum is σ = 199134936. Its totient is φ = 37253120.

The previous prime is 101545921. The next prime is 101545957. The reversal of 101545930 is 39545101.

It is a Cunningham number, because it is equal to 10077²+1.

It can be written as a sum of positive squares in 12 ways, for example, as 31505769 + 70040161 = 5613^2 + 8369^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118062 + ... + 118918.

Almost surely, 2^101545930 is an apocalyptic number.

101545930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101545930 is a deficient number, since it is larger than the sum of its proper divisors (97589006).

101545930 is a wasteful number, since it uses less digits than its factorization.

101545930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 101545930 is about 10077.0000496179. Note that the first 4 decimals coincide. The cubic root of 101545930 is about 466.5385198027.

The spelling of 101545930 in words is "one hundred one million, five hundred forty-five thousand, nine hundred thirty".