101161530 has 48 divisors (see below), whose sum is σ = 264176640. Its totient is φ = 26857824.

The previous prime is 101161523. The next prime is 101161561. The reversal of 101161530 is 35161101.

101161530 is a `hidden beast` number, since 10 + 11 + 615 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 19159 + ... + 23861.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^101161530 is an apocalyptic number.

101161530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101161530 is an abundant number, since it is smaller than the sum of its proper divisors (163015110).

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

101161530 is a wasteful number, since it uses less digits than its factorization.

101161530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955 (or 4952 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 101161530 is about 10057.9088283798. The cubic root of 101161530 is about 465.9490847993.

The spelling of 101161530 in words is "one hundred one million, one hundred sixty-one thousand, five hundred thirty".