101330557 has 8 divisors (see below), whose sum is σ = 109908792. Its totient is φ = 93043200.

The previous prime is 101330549. The next prime is 101330609. The reversal of 101330557 is 755033101.

It can be written as a sum of positive squares in 4 ways, for example, as 1610361 + 99720196 = 1269^2 + 9986^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 101330557 - 2³ = 101330549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101330507) 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, 71994 + ... + 73387.

It is an arithmetic number, because the mean of its divisors is an integer number (13738599).

Almost surely, 2^101330557 is an apocalyptic number.

101330557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

101330557 is a deficient number, since it is larger than the sum of its proper divisors (8578235).

101330557 is a wasteful number, since it uses less digits than its factorization.

101330557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145439.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 101330557 is about 10066.3080123747. The cubic root of 101330557 is about 466.2084526705.

Adding to 101330557 its reverse (755033101), we get a palindrome (856363658).

The spelling of 101330557 in words is "one hundred one million, three hundred thirty thousand, five hundred fifty-seven".