10121545 has 16 divisors (see below), whose sum is σ = 14698368. Its totient is φ = 6531840.

The previous prime is 10121543. The next prime is 10121561. The reversal of 10121545 is 54512101.

It is not a de Polignac number, because 10121545 - 2¹ = 10121543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121543) 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 15 ways as a sum of consecutive naturals, for example, 7911 + ... + 9100.

It is an arithmetic number, because the mean of its divisors is an integer number (918648).

Almost surely, 2^10121545 is an apocalyptic number.

It is an amenable number.

10121545 is a deficient number, since it is larger than the sum of its proper divisors (4576823).

10121545 is a wasteful number, since it uses less digits than its factorization.

10121545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17040.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 10121545 is about 3181.4375681443. The cubic root of 10121545 is about 216.3128254762.

Adding to 10121545 its reverse (54512101), we get a palindrome (64633646).

The spelling of 10121545 in words is "ten million, one hundred twenty-one thousand, five hundred forty-five".