351290641 has 8 divisors (see below), whose sum is σ = 382214504. Its totient is φ = 320924160.

The previous prime is 351290633. The next prime is 351290647. The reversal of 351290641 is 146092153.

It can be written as a sum of positive squares in 4 ways, for example, as 103041 + 351187600 = 321^2 + 18740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 351290641 - 2³ = 351290633 is a prime.

It is a super-2 number, since 2×351290641² = 246810228908381762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351290647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138030 + ... + 140551.

It is an arithmetic number, because the mean of its divisors is an integer number (47776813).

Almost surely, 2^351290641 is an apocalyptic number.

It is an amenable number.

351290641 is a deficient number, since it is larger than the sum of its proper divisors (30923863).

351290641 is a wasteful number, since it uses less digits than its factorization.

351290641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278691.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 351290641 is about 18742.7490246228. The cubic root of 351290641 is about 705.5950518223.

The spelling of 351290641 in words is "three hundred fifty-one million, two hundred ninety thousand, six hundred forty-one".