154122413 has 4 divisors (see below), whose sum is σ = 155013468. Its totient is φ = 153231360.

The previous prime is 154122389. The next prime is 154122439. The reversal of 154122413 is 314221451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314221451 = 7621 ⋅41231.

It can be written as a sum of positive squares in 2 ways, for example, as 65254084 + 88868329 = 8078^2 + 9427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154122413 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 (154122313) 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, 445268 + ... + 445613.

It is an arithmetic number, because the mean of its divisors is an integer number (38753367).

Almost surely, 2^154122413 is an apocalyptic number.

It is an amenable number.

154122413 is a deficient number, since it is larger than the sum of its proper divisors (891055).

154122413 is an equidigital number, since it uses as much as digits as its factorization.

154122413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891054.

The product of its digits is 960, while the sum is 23.

The square root of 154122413 is about 12414.6048265742. The cubic root of 154122413 is about 536.1528266318.

Adding to 154122413 its reverse (314221451), we get a palindrome (468343864).

The spelling of 154122413 in words is "one hundred fifty-four million, one hundred twenty-two thousand, four hundred thirteen".