1149071671 has 16 divisors (see below), whose sum is σ = 1298183040. Its totient is φ = 1007989920.

The previous prime is 1149071659. The next prime is 1149071689. The reversal of 1149071671 is 1761709411.

It is a cyclic number.

It is not a de Polignac number, because 1149071671 - 2⁹ = 1149071159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1149071671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149071071) 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 15 ways as a sum of consecutive naturals, for example, 24625 + ... + 53893.

It is an arithmetic number, because the mean of its divisors is an integer number (81136440).

Almost surely, 2^1149071671 is an apocalyptic number.

1149071671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1149071671 is a deficient number, since it is larger than the sum of its proper divisors (149111369).

1149071671 is a wasteful number, since it uses less digits than its factorization.

1149071671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29406.

The product of its (nonzero) digits is 10584, while the sum is 37.

The square root of 1149071671 is about 33897.9596878632. The cubic root of 1149071671 is about 1047.4075640642.

The spelling of 1149071671 in words is "one billion, one hundred forty-nine million, seventy-one thousand, six hundred seventy-one".