154190213 has 2 divisors, whose sum is σ = 154190214. Its totient is φ = 154190212.

The previous prime is 154190207. The next prime is 154190233. The reversal of 154190213 is 312091451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136025569 + 18164644 = 11663^2 + 4262^2 .

It is a cyclic number.

It is not a de Polignac number, because 154190213 - 2⁸ = 154189957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154190233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77095106 + 77095107.

It is an arithmetic number, because the mean of its divisors is an integer number (77095107).

Almost surely, 2^154190213 is an apocalyptic number.

It is an amenable number.

154190213 is a deficient number, since it is larger than the sum of its proper divisors (1).

154190213 is an equidigital number, since it uses as much as digits as its factorization.

154190213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 154190213 is about 12417.3351811087. The cubic root of 154190213 is about 536.2314347802.

The spelling of 154190213 in words is "one hundred fifty-four million, one hundred ninety thousand, two hundred thirteen".