499145393 has 2 divisors, whose sum is σ = 499145394. Its totient is φ = 499145392.

The previous prime is 499145363. The next prime is 499145399. The reversal of 499145393 is 393541994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264810529 + 234334864 = 16273^2 + 15308^2 .

It is a cyclic number.

It is not a de Polignac number, because 499145393 - 2¹⁰ = 499144369 is a prime.

It is a super-2 number, since 2×499145393² = 498292246706248898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (499145399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249572696 + 249572697.

It is an arithmetic number, because the mean of its divisors is an integer number (249572697).

Almost surely, 2^499145393 is an apocalyptic number.

It is an amenable number.

499145393 is a deficient number, since it is larger than the sum of its proper divisors (1).

499145393 is an equidigital number, since it uses as much as digits as its factorization.

499145393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 47.

The square root of 499145393 is about 22341.5620089554. The cubic root of 499145393 is about 793.2480667526.

The spelling of 499145393 in words is "four hundred ninety-nine million, one hundred forty-five thousand, three hundred ninety-three".