4016129 has 4 divisors (see below), whose sum is σ = 4325076. Its totient is φ = 3707184.

The previous prime is 4016119. The next prime is 4016141. The reversal of 4016129 is 9216104.

It is a happy number.

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 425104 + 3591025 = 652^2 + 1895^2 .

It is not a de Polignac number, because 4016129 - 2⁴ = 4016113 is a prime.

It is a super-2 number, since 2×4016129² = 32258584289282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4016119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154454 + ... + 154479.

It is an arithmetic number, because the mean of its divisors is an integer number (1081269).

It is a Proth number, since it is equal to 1961 ⋅ 2¹¹ + 1 and 1961 < 2¹¹.

Almost surely, 2^4016129 is an apocalyptic number.

It is an amenable number.

4016129 is a deficient number, since it is larger than the sum of its proper divisors (308947).

4016129 is a wasteful number, since it uses less digits than its factorization.

4016129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308946.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 4016129 is about 2004.0281934145. The cubic root of 4016129 is about 158.9531789937.

The spelling of 4016129 in words is "four million, sixteen thousand, one hundred twenty-nine".