154222351 has 4 divisors (see below), whose sum is σ = 163294272. Its totient is φ = 145150432.

The previous prime is 154222333. The next prime is 154222357. The reversal of 154222351 is 153222451.

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

It is a cyclic number.

It is not a de Polignac number, because 154222351 - 2⁹ = 154221839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154222357) 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, 4535935 + ... + 4535968.

It is an arithmetic number, because the mean of its divisors is an integer number (40823568).

Almost surely, 2^154222351 is an apocalyptic number.

154222351 is a deficient number, since it is larger than the sum of its proper divisors (9071921).

154222351 is an equidigital number, since it uses as much as digits as its factorization.

154222351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9071920.

The product of its digits is 2400, while the sum is 25.

The square root of 154222351 is about 12418.6291916620. The cubic root of 154222351 is about 536.2686879199.

The spelling of 154222351 in words is "one hundred fifty-four million, two hundred twenty-two thousand, three hundred fifty-one".