1001121149 has 8 divisors (see below), whose sum is σ = 1172044608. Its totient is φ = 837174240.

The previous prime is 1001121133. The next prime is 1001121179. The reversal of 1001121149 is 9411211001.

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

It is not a de Polignac number, because 1001121149 - 2⁴ = 1001121133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001121149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001121119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1743827 + ... + 1744400.

It is an arithmetic number, because the mean of its divisors is an integer number (146505576).

Almost surely, 2^1001121149 is an apocalyptic number.

It is an amenable number.

1001121149 is a deficient number, since it is larger than the sum of its proper divisors (170923459).

1001121149 is an equidigital number, since it uses as much as digits as its factorization.

1001121149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488275.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 1001121149 is about 31640.4985580190. The cubic root of 1001121149 is about 1000.3735767564.

The spelling of 1001121149 in words is "one billion, one million, one hundred twenty-one thousand, one hundred forty-nine".