351040523 has 4 divisors (see below), whose sum is σ = 369516360. Its totient is φ = 332564688.

The previous prime is 351040493. The next prime is 351040541. The reversal of 351040523 is 325040153.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 351040523 - 2⁸ = 351040267 is a prime.

It is a super-2 number, since 2×351040523² = 246458897576227058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351040553) 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, 9237890 + ... + 9237927.

It is an arithmetic number, because the mean of its divisors is an integer number (92379090).

Almost surely, 2^351040523 is an apocalyptic number.

351040523 is a deficient number, since it is larger than the sum of its proper divisors (18475837).

351040523 is a wasteful number, since it uses less digits than its factorization.

351040523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18475836.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 351040523 is about 18736.0754428455. The cubic root of 351040523 is about 705.4275514641.

Adding to 351040523 its reverse (325040153), we get a palindrome (676080676).

The spelling of 351040523 in words is "three hundred fifty-one million, forty thousand, five hundred twenty-three".