101561093 has 4 divisors (see below), whose sum is σ = 101887968. Its totient is φ = 101234220.

The previous prime is 101561081. The next prime is 101561101. The reversal of 101561093 is 390165101.

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 a cyclic number.

It is not a de Polignac number, because 101561093 - 2⁶ = 101561029 is a prime.

It is a super-2 number, since 2×101561093² = 20629311222709298, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101561063) 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, 162971 + ... + 163592.

It is an arithmetic number, because the mean of its divisors is an integer number (25471992).

Almost surely, 2^101561093 is an apocalyptic number.

It is an amenable number.

101561093 is a deficient number, since it is larger than the sum of its proper divisors (326875).

101561093 is an equidigital number, since it uses as much as digits as its factorization.

101561093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326874.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 101561093 is about 10077.7523783828. The cubic root of 101561093 is about 466.5617400719.

The spelling of 101561093 in words is "one hundred one million, five hundred sixty-one thousand, ninety-three".