101215453 has 2 divisors, whose sum is σ = 101215454. Its totient is φ = 101215452.

The previous prime is 101215417. The next prime is 101215459. The reversal of 101215453 is 354512101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96098809 + 5116644 = 9803^2 + 2262^2 .

It is a cyclic number.

It is not a de Polignac number, because 101215453 - 2¹³ = 101207261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101215459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50607726 + 50607727.

It is an arithmetic number, because the mean of its divisors is an integer number (50607727).

Almost surely, 2^101215453 is an apocalyptic number.

It is an amenable number.

101215453 is a deficient number, since it is larger than the sum of its proper divisors (1).

101215453 is an equidigital number, since it uses as much as digits as its factorization.

101215453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 101215453 is about 10060.5890980598. The cubic root of 101215453 is about 466.0318597091.

Adding to 101215453 its reverse (354512101), we get a palindrome (455727554).

The spelling of 101215453 in words is "one hundred one million, two hundred fifteen thousand, four hundred fifty-three".