101090001 has 4 divisors (see below), whose sum is σ = 134786672. Its totient is φ = 67393332.

The previous prime is 101089987. The next prime is 101090009. The reversal of 101090001 is 100090101.

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.

It is not a de Polignac number, because 101090001 - 2⁷ = 101089873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101090009) 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, 16848331 + ... + 16848336.

It is an arithmetic number, because the mean of its divisors is an integer number (33696668).

Almost surely, 2^101090001 is an apocalyptic number.

It is an amenable number.

101090001 is a deficient number, since it is larger than the sum of its proper divisors (33696671).

101090001 is an equidigital number, since it uses as much as digits as its factorization.

101090001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33696670.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 101090001 is about 10054.3523411506. The cubic root of 101090001 is about 465.8392382646.

The spelling of 101090001 in words is "one hundred one million, ninety thousand, one".