351489241 has 2 divisors, whose sum is σ = 351489242. Its totient is φ = 351489240.

The previous prime is 351489239. The next prime is 351489277. The reversal of 351489241 is 142984153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307651600 + 43837641 = 17540^2 + 6621^2 .

It is a cyclic number.

It is not a de Polignac number, because 351489241 - 2¹ = 351489239 is a prime.

Together with 351489239, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 351489241.

It is not a weakly prime, because it can be changed into another prime (351489221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175744620 + 175744621.

It is an arithmetic number, because the mean of its divisors is an integer number (175744621).

Almost surely, 2^351489241 is an apocalyptic number.

It is an amenable number.

351489241 is a deficient number, since it is larger than the sum of its proper divisors (1).

351489241 is an equidigital number, since it uses as much as digits as its factorization.

351489241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 351489241 is about 18748.0463248841. The cubic root of 351489241 is about 705.7279947114.

The spelling of 351489241 in words is "three hundred fifty-one million, four hundred eighty-nine thousand, two hundred forty-one".