101461021 has 4 divisors (see below), whose sum is σ = 102850972. Its totient is φ = 100071072.

The previous prime is 101461013. The next prime is 101461051. The reversal of 101461021 is 120164101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120164101 = 47 ⋅2556683.

It can be written as a sum of positive squares in 2 ways, for example, as 37380996 + 64080025 = 6114^2 + 8005^2 .

It is a cyclic number.

It is not a de Polignac number, because 101461021 - 2³ = 101461013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101460986 and 101461004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101461001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694866 + ... + 695011.

It is an arithmetic number, because the mean of its divisors is an integer number (25712743).

Almost surely, 2^101461021 is an apocalyptic number.

It is an amenable number.

101461021 is a deficient number, since it is larger than the sum of its proper divisors (1389951).

101461021 is an equidigital number, since it uses as much as digits as its factorization.

101461021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389950.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 101461021 is about 10072.7861587547. The cubic root of 101461021 is about 466.4084493824.

The spelling of 101461021 in words is "one hundred one million, four hundred sixty-one thousand, twenty-one".