355142042 has 4 divisors (see below), whose sum is σ = 532713066. Its totient is φ = 177571020.

The previous prime is 355142017. The next prime is 355142113. The reversal of 355142042 is 240241553.

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: 240241553 = 4561 ⋅52673.

It can be written as a sum of positive squares in only one way, i.e., 337493641 + 17648401 = 18371^2 + 4201^2 .

It is a super-2 number, since 2×355142042² = 252251739991859528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88785509 + ... + 88785512.

Almost surely, 2^355142042 is an apocalyptic number.

355142042 is a deficient number, since it is larger than the sum of its proper divisors (177571024).

355142042 is a wasteful number, since it uses less digits than its factorization.

355142042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177571023.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 355142042 is about 18845.2127077409. The cubic root of 355142042 is about 708.1642997565.

Adding to 355142042 its reverse (240241553), we get a palindrome (595383595).

The spelling of 355142042 in words is "three hundred fifty-five million, one hundred forty-two thousand, forty-two".