154371131 has 2 divisors, whose sum is σ = 154371132. Its totient is φ = 154371130.

The previous prime is 154371073. The next prime is 154371137. The reversal of 154371131 is 131173451.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154371131 is a prime.

It is a super-2 number, since 2×154371131² = 47660892172438322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154371131.

It is not a weakly prime, because it can be changed into another prime (154371137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77185565 + 77185566.

It is an arithmetic number, because the mean of its divisors is an integer number (77185566).

Almost surely, 2^154371131 is an apocalyptic number.

154371131 is a deficient number, since it is larger than the sum of its proper divisors (1).

154371131 is an equidigital number, since it uses as much as digits as its factorization.

154371131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 26.

The square root of 154371131 is about 12424.6179418121. The cubic root of 154371131 is about 536.4410805980.

The spelling of 154371131 in words is "one hundred fifty-four million, three hundred seventy-one thousand, one hundred thirty-one".