1201001572 has 6 divisors (see below), whose sum is σ = 2101752758. Its totient is φ = 600500784.

The previous prime is 1201001551. The next prime is 1201001573. The reversal of 1201001572 is 2751001021.

It can be written as a sum of positive squares in only one way, i.e., 945193536 + 255808036 = 30744^2 + 15994^2 .

It is not an unprimeable number, because it can be changed into a prime (1201001573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150125193 + ... + 150125200.

Almost surely, 2^1201001572 is an apocalyptic number.

It is an amenable number.

1201001572 is a deficient number, since it is larger than the sum of its proper divisors (900751186).

1201001572 is a wasteful number, since it uses less digits than its factorization.

1201001572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300250397 (or 300250395 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 1201001572 is about 34655.4695827369. The cubic root of 1201001572 is about 1062.9541339309.

Adding to 1201001572 its reverse (2751001021), we get a palindrome (3952002593).

The spelling of 1201001572 in words is "one billion, two hundred one million, one thousand, five hundred seventy-two".