1553129 has 2 divisors, whose sum is σ = 1553130. Its totient is φ = 1553128.

The previous prime is 1553119. The next prime is 1553147. The reversal of 1553129 is 9213551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1317904 + 235225 = 1148^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1553129 - 2¹² = 1549033 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1553098 and 1553107.

It is not a weakly prime, because it can be changed into another prime (1553119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776564 + 776565.

It is an arithmetic number, because the mean of its divisors is an integer number (776565).

2^1553129 is an apocalyptic number.

It is an amenable number.

1553129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553129 is an equidigital number, since it uses as much as digits as its factorization.

1553129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 26.

The square root of 1553129 is about 1246.2459628821. The cubic root of 1553129 is about 115.8072751049.

The spelling of 1553129 in words is "one million, five hundred fifty-three thousand, one hundred twenty-nine".