1251572 has 12 divisors (see below), whose sum is σ = 2503200. Its totient is φ = 536376.

The previous prime is 1251571. The next prime is 1251577. The reversal of 1251572 is 2751521.

It is a happy number.

1251572 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251571) 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, 22322 + ... + 22377.

It is an arithmetic number, because the mean of its divisors is an integer number (208600).

2^1251572 is an apocalyptic number.

It is an amenable number.

1251572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1251572 is a wasteful number, since it uses less digits than its factorization.

1251572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44710 (or 44708 counting only the distinct ones).

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

The square root of 1251572 is about 1118.7367876315. The cubic root of 1251572 is about 107.7668725361.

The spelling of 1251572 in words is "one million, two hundred fifty-one thousand, five hundred seventy-two".