1251672 has 16 divisors (see below), whose sum is σ = 3129240. Its totient is φ = 417216.

The previous prime is 1251671. The next prime is 1251697. The reversal of 1251672 is 2761521.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 52153 = 1251672 / (1 + 2 + 5 + 1 + 6 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26053 + ... + 26100.

2^1251672 is an apocalyptic number.

1251672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1251672 is an abundant number, since it is smaller than the sum of its proper divisors (1877568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1251672 is a wasteful number, since it uses less digits than its factorization.

1251672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52162 (or 52158 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 1251672 is about 1118.7814800040. The cubic root of 1251672 is about 107.7697426334.

The spelling of 1251672 in words is "one million, two hundred fifty-one thousand, six hundred seventy-two".