4014145 has 4 divisors (see below), whose sum is σ = 4816980. Its totient is φ = 3211312.

The previous prime is 4014139. The next prime is 4014161. The reversal of 4014145 is 5414104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1937664 + 2076481 = 1392^2 + 1441^2 .

It is a cyclic number.

It is not a de Polignac number, because 4014145 - 2³ = 4014137 is a prime.

It is a super-2 number, since 2×4014145² = 32226720162050, which contains 22 as substring.

4014145 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401410 + ... + 401419.

It is an arithmetic number, because the mean of its divisors is an integer number (1204245).

Almost surely, 2^4014145 is an apocalyptic number.

It is an amenable number.

4014145 is a deficient number, since it is larger than the sum of its proper divisors (802835).

4014145 is an equidigital number, since it uses as much as digits as its factorization.

4014145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802834.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4014145 is about 2003.5331292494. The cubic root of 4014145 is about 158.9269999664.

Adding to 4014145 its reverse (5414104), we get a palindrome (9428249).

It can be divided in two parts, 40141 and 45, that added together give a triangular number (40186 = T₂₈₃).

The spelling of 4014145 in words is "four million, fourteen thousand, one hundred forty-five".