154230397 has 8 divisors (see below), whose sum is σ = 158171832. Its totient is φ = 150297600.

The previous prime is 154230367. The next prime is 154230413. The reversal of 154230397 is 793032451.

It can be written as a sum of positive squares in 4 ways, for example, as 44169316 + 110061081 = 6646^2 + 10491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 154230397 - 2⁷ = 154230269 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 (154230337) 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, 49197 + ... + 52237.

It is an arithmetic number, because the mean of its divisors is an integer number (19771479).

Almost surely, 2^154230397 is an apocalyptic number.

It is an amenable number.

154230397 is a deficient number, since it is larger than the sum of its proper divisors (3941435).

154230397 is a wasteful number, since it uses less digits than its factorization.

154230397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 154230397 is about 12418.9531362350. The cubic root of 154230397 is about 536.2780137252.

The spelling of 154230397 in words is "one hundred fifty-four million, two hundred thirty thousand, three hundred ninety-seven".