101452121 has 4 divisors (see below), whose sum is σ = 104950500. Its totient is φ = 97953744.

The previous prime is 101452111. The next prime is 101452139. The reversal of 101452121 is 121254101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23377225 + 78074896 = 4835^2 + 8836^2 .

It is a cyclic number.

It is not a de Polignac number, because 101452121 - 2²² = 97257817 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101452121.

It is not an unprimeable number, because it can be changed into a prime (101452111) 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, 1749146 + ... + 1749203.

It is an arithmetic number, because the mean of its divisors is an integer number (26237625).

Almost surely, 2^101452121 is an apocalyptic number.

It is an amenable number.

101452121 is a deficient number, since it is larger than the sum of its proper divisors (3498379).

101452121 is an equidigital number, since it uses as much as digits as its factorization.

101452121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498378.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 101452121 is about 10072.3443646452. The cubic root of 101452121 is about 466.3948114469.

It can be divided in two parts, 1014 and 52121, that added together give a palindrome (53135).

The spelling of 101452121 in words is "one hundred one million, four hundred fifty-two thousand, one hundred twenty-one".