154153121 has 4 divisors (see below), whose sum is σ = 154190100. Its totient is φ = 154116144.

The previous prime is 154153037. The next prime is 154153123. The reversal of 154153121 is 121351451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26214400 + 127938721 = 5120^2 + 11311^2 .

It is a cyclic number.

It is not a de Polignac number, because 154153121 - 2¹⁴ = 154136737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154153123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11306 + ... + 20883.

It is an arithmetic number, because the mean of its divisors is an integer number (38547525).

Almost surely, 2^154153121 is an apocalyptic number.

It is an amenable number.

154153121 is a deficient number, since it is larger than the sum of its proper divisors (36979).

154153121 is an equidigital number, since it uses as much as digits as its factorization.

154153121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36978.

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

The square root of 154153121 is about 12415.8415341047. The cubic root of 154153121 is about 536.1884327177.

The spelling of 154153121 in words is "one hundred fifty-four million, one hundred fifty-three thousand, one hundred twenty-one".