1016129 has 4 divisors (see below), whose sum is σ = 1023684. Its totient is φ = 1008576.

The previous prime is 1016123. The next prime is 1016137. The reversal of 1016129 is 9216101.

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 719104 + 297025 = 848^2 + 545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016129 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1016129.

It is not an unprimeable number, because it can be changed into a prime (1016123) 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, 3572 + ... + 3845.

It is an arithmetic number, because the mean of its divisors is an integer number (255921).

2^1016129 is an apocalyptic number.

It is an amenable number.

1016129 is a deficient number, since it is larger than the sum of its proper divisors (7555).

1016129 is an equidigital number, since it uses as much as digits as its factorization.

1016129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1016129 is about 1008.0322415479. The cubic root of 1016129 is about 100.5347684625.

The spelling of 1016129 in words is "one million, sixteen thousand, one hundred twenty-nine".