154169954 has 4 divisors (see below), whose sum is σ = 231254934. Its totient is φ = 77084976.

The previous prime is 154169909. The next prime is 154170013. The reversal of 154169954 is 459961451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 459961451 = 9349 ⋅49199.

It can be written as a sum of positive squares in only one way, i.e., 132871729 + 21298225 = 11527^2 + 4615^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38542487 + ... + 38542490.

Almost surely, 2^154169954 is an apocalyptic number.

154169954 is a deficient number, since it is larger than the sum of its proper divisors (77084980).

154169954 is an equidigital number, since it uses as much as digits as its factorization.

154169954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77084979.

The product of its digits is 194400, while the sum is 44.

The square root of 154169954 is about 12416.5193995741. The cubic root of 154169954 is about 536.2079486625.

The spelling of 154169954 in words is "one hundred fifty-four million, one hundred sixty-nine thousand, nine hundred fifty-four".