154230431 has 2 divisors, whose sum is σ = 154230432. Its totient is φ = 154230430.

The previous prime is 154230413. The next prime is 154230481. The reversal of 154230431 is 134032451.

Together with previous prime (154230413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154230431 - 2⁶ = 154230367 is a prime.

It is a super-2 number, since 2×154230431² = 47574051692891522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154230397 and 154230406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154230481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77115215 + 77115216.

It is an arithmetic number, because the mean of its divisors is an integer number (77115216).

Almost surely, 2^154230431 is an apocalyptic number.

154230431 is a deficient number, since it is larger than the sum of its proper divisors (1).

154230431 is an equidigital number, since it uses as much as digits as its factorization.

154230431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 154230431 is about 12418.9545051103. The cubic root of 154230431 is about 536.2780531326.

Adding to 154230431 its reverse (134032451), we get a palindrome (288262882).

The spelling of 154230431 in words is "one hundred fifty-four million, two hundred thirty thousand, four hundred thirty-one".