154550001 has 8 divisors (see below), whose sum is σ = 207640224. Its totient is φ = 102246560.

The previous prime is 154549981. The next prime is 154550017. The reversal of 154550001 is 100055451.

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-154550001 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 154550001.

It is not an unprimeable number, because it can be changed into a prime (154550401) 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, 196236 + ... + 197021.

It is an arithmetic number, because the mean of its divisors is an integer number (25955028).

Almost surely, 2^154550001 is an apocalyptic number.

It is an amenable number.

154550001 is a deficient number, since it is larger than the sum of its proper divisors (53090223).

154550001 is a wasteful number, since it uses less digits than its factorization.

154550001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393391.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 154550001 is about 12431.8140671424. The cubic root of 154550001 is about 536.6481922493.

The spelling of 154550001 in words is "one hundred fifty-four million, five hundred fifty thousand, one".