2657129 has 2 divisors, whose sum is σ = 2657130. Its totient is φ = 2657128.

The previous prime is 2657119. The next prime is 2657143. The reversal of 2657129 is 9217562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2647129 + 10000 = 1627^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2657129 - 2¹² = 2653033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2657095 and 2657104.

It is not a weakly prime, because it can be changed into another prime (2657119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328564 + 1328565.

It is an arithmetic number, because the mean of its divisors is an integer number (1328565).

2^2657129 is an apocalyptic number.

It is an amenable number.

2657129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2657129 is an equidigital number, since it uses as much as digits as its factorization.

2657129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 2657129 is about 1630.0702438852. The cubic root of 2657129 is about 138.5067311564.

The spelling of 2657129 in words is "two million, six hundred fifty-seven thousand, one hundred twenty-nine".