101129393 has 4 divisors (see below), whose sum is σ = 101381988. Its totient is φ = 100876800.

The previous prime is 101129389. The next prime is 101129407. The reversal of 101129393 is 393921101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393921101 = 7 ⋅56274443.

It can be written as a sum of positive squares in 2 ways, for example, as 97377424 + 3751969 = 9868^2 + 1937^2 .

It is a cyclic number.

It is not a de Polignac number, because 101129393 - 2² = 101129389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101129323) 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, 125696 + ... + 126497.

It is an arithmetic number, because the mean of its divisors is an integer number (25345497).

Almost surely, 2^101129393 is an apocalyptic number.

It is an amenable number.

101129393 is a deficient number, since it is larger than the sum of its proper divisors (252595).

101129393 is an equidigital number, since it uses as much as digits as its factorization.

101129393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252594.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 101129393 is about 10056.3111029840. The cubic root of 101129393 is about 465.8997386638.

The spelling of 101129393 in words is "one hundred one million, one hundred twenty-nine thousand, three hundred ninety-three".