1245572 has 6 divisors (see below), whose sum is σ = 2179758. Its totient is φ = 622784.

The previous prime is 1245557. The next prime is 1245589. The reversal of 1245572 is 2755421.

It can be written as a sum of positive squares in only one way, i.e., 749956 + 495616 = 866^2 + 704^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155693 + ... + 155700.

It is an arithmetic number, because the mean of its divisors is an integer number (363293).

2^1245572 is an apocalyptic number.

It is an amenable number.

1245572 is a deficient number, since it is larger than the sum of its proper divisors (934186).

1245572 is a wasteful number, since it uses less digits than its factorization.

1245572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311397 (or 311395 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 1245572 is about 1116.0519701161. The cubic root of 1245572 is about 107.5943861860.

The spelling of 1245572 in words is "one million, two hundred forty-five thousand, five hundred seventy-two".