154045213 has 4 divisors (see below), whose sum is σ = 176051680. Its totient is φ = 132038748.

The previous prime is 154045153. The next prime is 154045223. The reversal of 154045213 is 312540451.

It is a happy number.

154045213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312540451 = 15263 ⋅20477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154045213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154045223) 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, 11003223 + ... + 11003236.

It is an arithmetic number, because the mean of its divisors is an integer number (44012920).

Almost surely, 2^154045213 is an apocalyptic number.

It is an amenable number.

154045213 is a deficient number, since it is larger than the sum of its proper divisors (22006467).

154045213 is an equidigital number, since it uses as much as digits as its factorization.

154045213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22006466.

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

The square root of 154045213 is about 12411.4951959867. The cubic root of 154045213 is about 536.0632919339.

Adding to 154045213 its reverse (312540451), we get a palindrome (466585664).

The spelling of 154045213 in words is "one hundred fifty-four million, forty-five thousand, two hundred thirteen".