121145347 has 8 divisors (see below), whose sum is σ = 127058976. Its totient is φ = 115285632.

The previous prime is 121145341. The next prime is 121145377. The reversal of 121145347 is 743541121.

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 121145347 - 2²³ = 112756739 is a prime.

It is a super-3 number, since 3×121145347³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121145341) 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, 8838 + ... + 17899.

It is an arithmetic number, because the mean of its divisors is an integer number (15882372).

Almost surely, 2^121145347 is an apocalyptic number.

121145347 is a deficient number, since it is larger than the sum of its proper divisors (5913629).

121145347 is a wasteful number, since it uses less digits than its factorization.

121145347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26957.

The product of its digits is 3360, while the sum is 28.

The square root of 121145347 is about 11006.6046989978. The cubic root of 121145347 is about 494.8067088739.

Adding to 121145347 its reverse (743541121), we get a palindrome (864686468).

The spelling of 121145347 in words is "one hundred twenty-one million, one hundred forty-five thousand, three hundred forty-seven".