1631272 has 8 divisors (see below), whose sum is σ = 3058650. Its totient is φ = 815632.

The previous prime is 1631263. The next prime is 1631297. The reversal of 1631272 is 2721361.

It can be written as a sum of positive squares in only one way, i.e., 1406596 + 224676 = 1186^2 + 474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1631272² = 5322096675968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101947 + ... + 101962.

2^1631272 is an apocalyptic number.

It is an amenable number.

1631272 is a deficient number, since it is larger than the sum of its proper divisors (1427378).

1631272 is a wasteful number, since it uses less digits than its factorization.

1631272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203915 (or 203911 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 1631272 is about 1277.2125899787. The cubic root of 1631272 is about 117.7177973404.

It can be divided in two parts, 16312 and 72, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 1631272 in words is "one million, six hundred thirty-one thousand, two hundred seventy-two".