4145739 has 32 divisors (see below), whose sum is σ = 6511680. Its totient is φ = 2336256.

The previous prime is 4145737. The next prime is 4145777. The reversal of 4145739 is 9375414.

It is not a de Polignac number, because 4145739 - 2¹ = 4145737 is a prime.

It is a super-2 number, since 2×4145739² = 34374303712242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

Its product of digits (15120) is a multiple of the sum of its prime divisors (70).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4145731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112029 + ... + 112065.

It is an arithmetic number, because the mean of its divisors is an integer number (203490).

Almost surely, 2^4145739 is an apocalyptic number.

4145739 is a deficient number, since it is larger than the sum of its proper divisors (2365941).

4145739 is a wasteful number, since it uses less digits than its factorization.

4145739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 70 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 4145739 is about 2036.1087888421. The cubic root of 4145739 is about 160.6450392618.

It can be divided in two parts, 4145 and 739, that added together give a palindrome (4884).

The spelling of 4145739 in words is "four million, one hundred forty-five thousand, seven hundred thirty-nine".