101157730 has 8 divisors (see below), whose sum is σ = 182083932. Its totient is φ = 40463088.

The previous prime is 101157673. The next prime is 101157731. The reversal of 101157730 is 37751101.

It can be written as a sum of positive squares in 2 ways, for example, as 98664489 + 2493241 = 9933^2 + 1579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 101157695 and 101157704.

It is not an unprimeable number, because it can be changed into a prime (101157731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5057877 + ... + 5057896.

Almost surely, 2^101157730 is an apocalyptic number.

101157730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101157730 is a deficient number, since it is larger than the sum of its proper divisors (80926202).

101157730 is a wasteful number, since it uses less digits than its factorization.

101157730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10115780.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 101157730 is about 10057.7199205387. The cubic root of 101157730 is about 465.9432504711.

The spelling of 101157730 in words is "one hundred one million, one hundred fifty-seven thousand, seven hundred thirty".