351040493 has 2 divisors, whose sum is σ = 351040494. Its totient is φ = 351040492.

The previous prime is 351040477. The next prime is 351040541. The reversal of 351040493 is 394040153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258630724 + 92409769 = 16082^2 + 9613^2 .

It is a cyclic number.

It is not a de Polignac number, because 351040493 - 2⁴ = 351040477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351040693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175520246 + 175520247.

It is an arithmetic number, because the mean of its divisors is an integer number (175520247).

Almost surely, 2^351040493 is an apocalyptic number.

It is an amenable number.

351040493 is a deficient number, since it is larger than the sum of its proper divisors (1).

351040493 is an equidigital number, since it uses as much as digits as its factorization.

351040493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 351040493 is about 18736.0746422510. The cubic root of 351040493 is about 705.4275313687.

The spelling of 351040493 in words is "three hundred fifty-one million, forty thousand, four hundred ninety-three".