1120001149 has 4 divisors (see below), whose sum is σ = 1121057820. Its totient is φ = 1118944480.

The previous prime is 1120001119. The next prime is 1120001159. The reversal of 1120001149 is 9411000211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9411000211 = 107 ⋅87953273.

It can be written as a sum of positive squares in 2 ways, for example, as 234641124 + 885360025 = 15318^2 + 29755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120001149 - 2¹⁷ = 1119870077 is a prime.

It is a super-2 number, since 2×1120001149² = 2508805147522640402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120001119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526744 + ... + 528865.

It is an arithmetic number, because the mean of its divisors is an integer number (280264455).

Almost surely, 2^1120001149 is an apocalyptic number.

It is an amenable number.

1120001149 is a deficient number, since it is larger than the sum of its proper divisors (1056671).

1120001149 is a wasteful number, since it uses less digits than its factorization.

1120001149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056670.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1120001149 is about 33466.4182278295. The cubic root of 1120001149 is about 1038.4991754996.

The spelling of 1120001149 in words is "one billion, one hundred twenty million, one thousand, one hundred forty-nine".