10145439 has 8 divisors (see below), whose sum is σ = 15030320. Its totient is φ = 6763608.

The previous prime is 10145423. The next prime is 10145477. The reversal of 10145439 is 93454101.

It is not a de Polignac number, because 10145439 - 2⁴ = 10145423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 375757 = 10145439 / (1 + 0 + 1 + 4 + 5 + 4 + 3 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10145489) 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, 187852 + ... + 187905.

It is an arithmetic number, because the mean of its divisors is an integer number (1878790).

Almost surely, 2^10145439 is an apocalyptic number.

10145439 is a deficient number, since it is larger than the sum of its proper divisors (4884881).

10145439 is an equidigital number, since it uses as much as digits as its factorization.

10145439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375766 (or 375760 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 10145439 is about 3185.1905751462. The cubic root of 10145439 is about 216.4829087593.

The spelling of 10145439 in words is "ten million, one hundred forty-five thousand, four hundred thirty-nine".