1001291485 has 4 divisors (see below), whose sum is σ = 1201549788. Its totient is φ = 801033184.

The previous prime is 1001291411. The next prime is 1001291503. The reversal of 1001291485 is 5841921001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190522809 + 810768676 = 13803^2 + 28474^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001291485 - 2¹³ = 1001283293 is a prime.

It is a super-3 number, since 3×1001291485³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

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, 100129144 + ... + 100129153.

It is an arithmetic number, because the mean of its divisors is an integer number (300387447).

Almost surely, 2^1001291485 is an apocalyptic number.

It is an amenable number.

1001291485 is a deficient number, since it is larger than the sum of its proper divisors (200258303).

1001291485 is an equidigital number, since it uses as much as digits as its factorization.

1001291485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200258302.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 1001291485 is about 31643.1901836714. The cubic root of 1001291485 is about 1000.4303098069.

The spelling of 1001291485 in words is "one billion, one million, two hundred ninety-one thousand, four hundred eighty-five".