351223142 has 4 divisors (see below), whose sum is σ = 526834716. Its totient is φ = 175611570.

The previous prime is 351223091. The next prime is 351223163. The reversal of 351223142 is 241322153.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87805784 + ... + 87805787.

It is an arithmetic number, because the mean of its divisors is an integer number (131708679).

Almost surely, 2^351223142 is an apocalyptic number.

351223142 is a deficient number, since it is larger than the sum of its proper divisors (175611574).

351223142 is a wasteful number, since it uses less digits than its factorization.

351223142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175611573.

The product of its digits is 1440, while the sum is 23.

The square root of 351223142 is about 18740.9482684308. The cubic root of 351223142 is about 705.5498565665.

Adding to 351223142 its reverse (241322153), we get a palindrome (592545295).

The spelling of 351223142 in words is "three hundred fifty-one million, two hundred twenty-three thousand, one hundred forty-two".