1626130129 has 4 divisors (see below), whose sum is σ = 1751217076. Its totient is φ = 1501043184.

The previous prime is 1626130127. The next prime is 1626130147. The reversal of 1626130129 is 9210316261.

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 1071056529 + 555073600 = 32727^2 + 23560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1626130129 - 2¹ = 1626130127 is a prime.

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 1626130129.

It is not an unprimeable number, because it can be changed into a prime (1626130123) 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, 62543454 + ... + 62543479.

It is an arithmetic number, because the mean of its divisors is an integer number (437804269).

Almost surely, 2^1626130129 is an apocalyptic number.

It is an amenable number.

1626130129 is a deficient number, since it is larger than the sum of its proper divisors (125086947).

1626130129 is a wasteful number, since it uses less digits than its factorization.

1626130129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125086946.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1626130129 is about 40325.3038302255. The cubic root of 1626130129 is about 1175.9398254743.

The spelling of 1626130129 in words is "one billion, six hundred twenty-six million, one hundred thirty thousand, one hundred twenty-nine".