10120045 has 8 divisors (see below), whose sum is σ = 13078296. Its totient is φ = 7473216.

The previous prime is 10120039. The next prime is 10120057. The reversal of 10120045 is 54002101.

It can be written as a sum of positive squares in 4 ways, for example, as 121801 + 9998244 = 349^2 + 3162^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10120045 - 2¹⁷ = 9988973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77782 + ... + 77911.

It is an arithmetic number, because the mean of its divisors is an integer number (1634787).

Almost surely, 2^10120045 is an apocalyptic number.

It is an amenable number.

10120045 is a deficient number, since it is larger than the sum of its proper divisors (2958251).

10120045 is a wasteful number, since it uses less digits than its factorization.

10120045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155711.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 10120045 is about 3181.2018169239. The cubic root of 10120045 is about 216.3021391871.

Adding to 10120045 its reverse (54002101), we get a palindrome (64122146).

The spelling of 10120045 in words is "ten million, one hundred twenty thousand, forty-five".