154901213 has 2 divisors, whose sum is σ = 154901214. Its totient is φ = 154901212.

The previous prime is 154901107. The next prime is 154901261. The reversal of 154901213 is 312109451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78198649 + 76702564 = 8843^2 + 8758^2 .

It is an emirp because it is prime and its reverse (312109451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154901213 - 2²⁰ = 153852637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154901273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77450606 + 77450607.

It is an arithmetic number, because the mean of its divisors is an integer number (77450607).

Almost surely, 2^154901213 is an apocalyptic number.

It is an amenable number.

154901213 is a deficient number, since it is larger than the sum of its proper divisors (1).

154901213 is an equidigital number, since it uses as much as digits as its factorization.

154901213 is an odious number, because the sum of its binary digits is odd.

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

The square root of 154901213 is about 12445.9315842568. The cubic root of 154901213 is about 537.0543923857.

The spelling of 154901213 in words is "one hundred fifty-four million, nine hundred one thousand, two hundred thirteen".