100742801 has 4 divisors (see below), whose sum is σ = 100953600. Its totient is φ = 100532004.

The previous prime is 100742797. The next prime is 100742819. The reversal of 100742801 is 108247001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108247001 = 61 ⋅1774541.

It is a cyclic number.

It is not a de Polignac number, because 100742801 - 2² = 100742797 is a prime.

It is a super-2 number, since 2×100742801² = 20298223906651202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100742861) 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, 104681 + ... + 105638.

It is an arithmetic number, because the mean of its divisors is an integer number (25238400).

Almost surely, 2^100742801 is an apocalyptic number.

It is an amenable number.

100742801 is a deficient number, since it is larger than the sum of its proper divisors (210799).

100742801 is an equidigital number, since it uses as much as digits as its factorization.

100742801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210798.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 100742801 is about 10037.0713358031. The cubic root of 100742801 is about 465.3053084196.

Adding to 100742801 its reverse (108247001), we get a palindrome (208989802).

The spelling of 100742801 in words is "one hundred million, seven hundred forty-two thousand, eight hundred one".