1257652 has 24 divisors (see below), whose sum is σ = 2433312. Its totient is φ = 564000.

The previous prime is 1257647. The next prime is 1257653. The reversal of 1257652 is 2567521.

It is a self number, because there is not a number n which added to its sum of digits gives 1257652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4303 + ... + 4585.

It is an arithmetic number, because the mean of its divisors is an integer number (101388).

2^1257652 is an apocalyptic number.

It is an amenable number.

1257652 is a deficient number, since it is larger than the sum of its proper divisors (1175660).

1257652 is a wasteful number, since it uses less digits than its factorization.

1257652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 397 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 1257652 is about 1121.4508460026. The cubic root of 1257652 is about 107.9410972816.

It can be divided in two parts, 125 and 7652, that added together give a palindrome (7777).

The spelling of 1257652 in words is "one million, two hundred fifty-seven thousand, six hundred fifty-two".