4100145 has 32 divisors (see below), whose sum is σ = 7941888. Its totient is φ = 1763328.

The previous prime is 4100137. The next prime is 4100167. The reversal of 4100145 is 5410014.

It is not a de Polignac number, because 4100145 - 2³ = 4100137 is a prime.

It is a super-2 number, since 2×4100145² = 33622378042050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 637 + ... + 2933.

It is an arithmetic number, because the mean of its divisors is an integer number (248184).

Almost surely, 2^4100145 is an apocalyptic number.

It is an amenable number.

4100145 is a deficient number, since it is larger than the sum of its proper divisors (3841743).

4100145 is a wasteful number, since it uses less digits than its factorization.

4100145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 4100145 is about 2024.8814780130. The cubic root of 4100145 is about 160.0539531587.

Adding to 4100145 its reverse (5410014), we get a palindrome (9510159).

The spelling of 4100145 in words is "four million, one hundred thousand, one hundred forty-five".