1540963201 has 4 divisors (see below), whose sum is σ = 1544806404. Its totient is φ = 1537120000.

The previous prime is 1540963189. The next prime is 1540963219. The reversal of 1540963201 is 1023690451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1023690451 = 7 ⋅146241493.

It can be written as a sum of positive squares in 2 ways, for example, as 1018886400 + 522076801 = 31920^2 + 22849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540963201 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540963231) 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 in 3 ways as a sum of consecutive naturals, for example, 1921000 + ... + 1921801.

It is an arithmetic number, because the mean of its divisors is an integer number (386201601).

Almost surely, 2^1540963201 is an apocalyptic number.

It is an amenable number.

1540963201 is a deficient number, since it is larger than the sum of its proper divisors (3843203).

1540963201 is an equidigital number, since it uses as much as digits as its factorization.

1540963201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843202.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1540963201 is about 39255.1041394619. The cubic root of 1540963201 is about 1155.0410587404.

The spelling of 1540963201 in words is "one billion, five hundred forty million, nine hundred sixty-three thousand, two hundred one".