154402101 has 12 divisors (see below), whose sum is σ = 254886112. Its totient is φ = 88229736.

The previous prime is 154402093. The next prime is 154402111. The reversal of 154402101 is 101204451.

154402101 is a `hidden beast` number, since 15 + 440 + 210 + 1 = 666.

It is not a de Polignac number, because 154402101 - 2³ = 154402093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154402111) 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, 1225351 + ... + 1225476.

Almost surely, 2^154402101 is an apocalyptic number.

It is an amenable number.

154402101 is a deficient number, since it is larger than the sum of its proper divisors (100484011).

154402101 is a wasteful number, since it uses less digits than its factorization.

154402101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450840 (or 2450837 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 154402101 is about 12425.8641952985. The cubic root of 154402101 is about 536.4769518762.

Adding to 154402101 its reverse (101204451), we get a palindrome (255606552).

The spelling of 154402101 in words is "one hundred fifty-four million, four hundred two thousand, one hundred one".