493977151 has 2 divisors, whose sum is σ = 493977152. Its totient is φ = 493977150.

The previous prime is 493977091. The next prime is 493977199. The reversal of 493977151 is 151779394.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 493977151 - 2⁷ = 493977023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493971151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246988575 + 246988576.

It is an arithmetic number, because the mean of its divisors is an integer number (246988576).

Almost surely, 2^493977151 is an apocalyptic number.

493977151 is a deficient number, since it is larger than the sum of its proper divisors (1).

493977151 is an equidigital number, since it uses as much as digits as its factorization.

493977151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 46.

The square root of 493977151 is about 22225.5967523934. The cubic root of 493977151 is about 790.5007512645.

The spelling of 493977151 in words is "four hundred ninety-three million, nine hundred seventy-seven thousand, one hundred fifty-one".