121153145 has 8 divisors (see below), whose sum is σ = 148765056. Its totient is φ = 94668336.

The previous prime is 121153103. The next prime is 121153147. The reversal of 121153145 is 541351121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121153145 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121153145.

It is not an unprimeable number, because it can be changed into a prime (121153147) 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, 281537 + ... + 281966.

It is an arithmetic number, because the mean of its divisors is an integer number (18595632).

Almost surely, 2^121153145 is an apocalyptic number.

It is an amenable number.

121153145 is a deficient number, since it is larger than the sum of its proper divisors (27611911).

121153145 is an equidigital number, since it uses as much as digits as its factorization.

121153145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563551.

The product of its digits is 600, while the sum is 23.

The square root of 121153145 is about 11006.9589351464. The cubic root of 121153145 is about 494.8173253772.

The spelling of 121153145 in words is "one hundred twenty-one million, one hundred fifty-three thousand, one hundred forty-five".