2001574937 has 2 divisors, whose sum is σ = 2001574938. Its totient is φ = 2001574936.

The previous prime is 2001574909. The next prime is 2001574973. The reversal of 2001574937 is 7394751002.

Together with next prime (2001574973) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1757621776 + 243953161 = 41924^2 + 15619^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001574937 - 2¹⁸ = 2001312793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001574937.

It is not a weakly prime, because it can be changed into another prime (2001570937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000787468 + 1000787469.

It is an arithmetic number, because the mean of its divisors is an integer number (1000787469).

Almost surely, 2^2001574937 is an apocalyptic number.

It is an amenable number.

2001574937 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001574937 is an equidigital number, since it uses as much as digits as its factorization.

2001574937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 2001574937 is about 44738.9644158199. The cubic root of 2001574937 is about 1260.2516791698.

The spelling of 2001574937 in words is "two billion, one million, five hundred seventy-four thousand, nine hundred thirty-seven".