10042745 has 8 divisors (see below), whose sum is σ = 12345480. Its totient is φ = 7838080.

The previous prime is 10042741. The next prime is 10042757. The reversal of 10042745 is 54724001.

It can be written as a sum of positive squares in 4 ways, for example, as 1138489 + 8904256 = 1067^2 + 2984^2 .

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

It is not a de Polignac number, because 10042745 - 2² = 10042741 is a prime.

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 10042745.

It is not an unprimeable number, because it can be changed into a prime (10042741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24290 + ... + 24699.

It is an arithmetic number, because the mean of its divisors is an integer number (1543185).

Almost surely, 2^10042745 is an apocalyptic number.

It is an amenable number.

10042745 is a deficient number, since it is larger than the sum of its proper divisors (2302735).

10042745 is an equidigital number, since it uses as much as digits as its factorization.

10042745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49035.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 10042745 is about 3169.0290311072. The cubic root of 10042745 is about 215.7500036924.

Adding to 10042745 its reverse (54724001), we get a palindrome (64766746).

The spelling of 10042745 in words is "ten million, forty-two thousand, seven hundred forty-five".