345102242 has 4 divisors (see below), whose sum is σ = 517653366. Its totient is φ = 172551120.

The previous prime is 345102223. The next prime is 345102271. The reversal of 345102242 is 242201543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242201543 = 31 ⋅7812953.

It can be written as a sum of positive squares in only one way, i.e., 321879481 + 23222761 = 17941^2 + 4819^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86275559 + ... + 86275562.

Almost surely, 2^345102242 is an apocalyptic number.

345102242 is a deficient number, since it is larger than the sum of its proper divisors (172551124).

345102242 is a wasteful number, since it uses less digits than its factorization.

345102242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172551123.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 345102242 is about 18576.9276792477. The cubic root of 345102242 is about 701.4271848261.

Adding to 345102242 its reverse (242201543), we get a palindrome (587303785).

The spelling of 345102242 in words is "three hundred forty-five million, one hundred two thousand, two hundred forty-two".