1201570 has 8 divisors (see below), whose sum is σ = 2162844. Its totient is φ = 480624.

The previous prime is 1201567. The next prime is 1201583. The reversal of 1201570 is 751021.

It can be written as a sum of positive squares in 2 ways, for example, as 1121481 + 80089 = 1059^2 + 283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60069 + ... + 60088.

2^1201570 is an apocalyptic number.

1201570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201570 is a deficient number, since it is larger than the sum of its proper divisors (961274).

1201570 is a wasteful number, since it uses less digits than its factorization.

1201570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120164.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 1201570 is about 1096.1614844538. The cubic root of 1201570 is about 106.3121804429.

Adding to 1201570 its reverse (751021), we get a palindrome (1952591).

It can be divided in two parts, 1201 and 570, that added together give a palindrome (1771).

The spelling of 1201570 in words is "one million, two hundred one thousand, five hundred seventy".