351250001 has 4 divisors (see below), whose sum is σ = 363362100. Its totient is φ = 339137904.

The previous prime is 351249989. The next prime is 351250007. The reversal of 351250001 is 100052153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100052153 = 4721 ⋅21193.

It can be written as a sum of positive squares in 2 ways, for example, as 160782400 + 190467601 = 12680^2 + 13801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351250001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (351250007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6056006 + ... + 6056063.

It is an arithmetic number, because the mean of its divisors is an integer number (90840525).

Almost surely, 2^351250001 is an apocalyptic number.

It is an amenable number.

351250001 is a deficient number, since it is larger than the sum of its proper divisors (12112099).

351250001 is a wasteful number, since it uses less digits than its factorization.

351250001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12112098.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 351250001 is about 18741.6648406698. The cubic root of 351250001 is about 705.5678412210.

The spelling of 351250001 in words is "three hundred fifty-one million, two hundred fifty thousand, one".