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1144664121 = 32239170413
BaseRepresentation
bin100010000111010…
…0011000000111001
32221202212221222110
41010032203000321
54321013222441
6305330042533
740236325116
oct10416430071
92852787873
101144664121
11538151107
1227b419449
131531bb463
14ac04790d
156a759b16
hex443a3039

1144664121 has 8 divisors (see below), whose sum is σ = 1526909440. Its totient is φ = 762764112.

The previous prime is 1144664093. The next prime is 1144664149. The reversal of 1144664121 is 1214664411.

It is an interprime number because it is at equal distance from previous prime (1144664093) and next prime (1144664149).

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

It is not a de Polignac number, because 1144664121 - 25 = 1144664089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1144664021) 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, 78490 + ... + 91923.

It is an arithmetic number, because the mean of its divisors is an integer number (190863680).

Almost surely, 21144664121 is an apocalyptic number.

It is an amenable number.

1144664121 is a deficient number, since it is larger than the sum of its proper divisors (382245319).

1144664121 is a wasteful number, since it uses less digits than its factorization.

1144664121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172655.

The product of its digits is 4608, while the sum is 30.

The square root of 1144664121 is about 33832.8852006447. The cubic root of 1144664121 is about 1046.0666507816.

The spelling of 1144664121 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, one hundred twenty-one".

Divisors: 1 3 2239 6717 170413 511239 381554707 1144664121