154012213 has 2 divisors, whose sum is σ = 154012214. Its totient is φ = 154012212.

The previous prime is 154012207. The next prime is 154012217. The reversal of 154012213 is 312210451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121727089 + 32285124 = 11033^2 + 5682^2 .

It is a cyclic number.

It is not a de Polignac number, because 154012213 - 2¹⁷ = 153881141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154012217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77006106 + 77006107.

It is an arithmetic number, because the mean of its divisors is an integer number (77006107).

Almost surely, 2^154012213 is an apocalyptic number.

It is an amenable number.

154012213 is a deficient number, since it is larger than the sum of its proper divisors (1).

154012213 is an equidigital number, since it uses as much as digits as its factorization.

154012213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 154012213 is about 12410.1657120282. The cubic root of 154012213 is about 536.0250102034.

Adding to 154012213 its reverse (312210451), we get a palindrome (466222664).

The spelling of 154012213 in words is "one hundred fifty-four million, twelve thousand, two hundred thirteen".