154121451 has 12 divisors (see below), whose sum is σ = 225875496. Its totient is φ = 93406720.

The previous prime is 154121449. The next prime is 154121477.

154121451 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 154121451 - 2¹ = 154121449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154121251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211926 + ... + 212651.

It is an arithmetic number, because the mean of its divisors is an integer number (18822958).

Almost surely, 2^154121451 is an apocalyptic number.

154121451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

154121451 is a deficient number, since it is larger than the sum of its proper divisors (71754045).

154121451 is a wasteful number, since it uses less digits than its factorization.

154121451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424602 (or 424591 counting only the distinct ones).

The product of its digits is 800, while the sum is 24.

The square root of 154121451 is about 12414.5660818250. The cubic root of 154121451 is about 536.1517111114.

The spelling of 154121451 in words is "one hundred fifty-four million, one hundred twenty-one thousand, four hundred fifty-one".