1271552 has 18 divisors (see below), whose sum is σ = 2538648. Its totient is φ = 635648.

The previous prime is 1271551. The next prime is 1271561. The reversal of 1271552 is 2551721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2228 + ... + 2739.

It is an arithmetic number, because the mean of its divisors is an integer number (141036).

2^1271552 is an apocalyptic number.

It is an amenable number.

1271552 is a deficient number, since it is larger than the sum of its proper divisors (1267096).

1271552 is an frugal number, since it uses more digits than its factorization.

1271552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4983 (or 4969 counting only the distinct ones).

The product of its digits is 700, while the sum is 23.

The square root of 1271552 is about 1127.6311453662. The cubic root of 1271552 is about 108.3373084669.

The spelling of 1271552 in words is "one million, two hundred seventy-one thousand, five hundred fifty-two".