654152381 has 2 divisors, whose sum is σ = 654152382. Its totient is φ = 654152380.

The previous prime is 654152371. The next prime is 654152431. The reversal of 654152381 is 183251456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422960356 + 231192025 = 20566^2 + 15205^2 .

It is a cyclic number.

It is not a de Polignac number, because 654152381 - 2¹⁰ = 654151357 is a prime.

It is a super-2 number, since 2×654152381² = 855830675135938322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654152371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327076190 + 327076191.

It is an arithmetic number, because the mean of its divisors is an integer number (327076191).

Almost surely, 2^654152381 is an apocalyptic number.

It is an amenable number.

654152381 is a deficient number, since it is larger than the sum of its proper divisors (1).

654152381 is an equidigital number, since it uses as much as digits as its factorization.

654152381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 35.

The square root of 654152381 is about 25576.4028158770. The cubic root of 654152381 is about 868.0797835057.

The spelling of 654152381 in words is "six hundred fifty-four million, one hundred fifty-two thousand, three hundred eighty-one".