1121640167 has 8 divisors (see below), whose sum is σ = 1187200560. Its totient is φ = 1056732480.

The previous prime is 1121640139. The next prime is 1121640257. The reversal of 1121640167 is 7610461211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121640167 - 2¹² = 1121636071 is a prime.

It is a super-3 number, since 3×1121640167³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121643167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159638 + ... + 166515.

It is an arithmetic number, because the mean of its divisors is an integer number (148400070).

Almost surely, 2^1121640167 is an apocalyptic number.

1121640167 is a deficient number, since it is larger than the sum of its proper divisors (65560393).

1121640167 is a wasteful number, since it uses less digits than its factorization.

1121640167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326353.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1121640167 is about 33490.8967780799. The cubic root of 1121640167 is about 1039.0055110570.

The spelling of 1121640167 in words is "one billion, one hundred twenty-one million, six hundred forty thousand, one hundred sixty-seven".