613100042 has 4 divisors (see below), whose sum is σ = 919650066. Its totient is φ = 306550020.

The previous prime is 613100041. The next prime is 613100057. The reversal of 613100042 is 240001316.

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

It can be written as a sum of positive squares in only one way, i.e., 436768201 + 176331841 = 20899^2 + 13279^2 .

It is not an unprimeable number, because it can be changed into a prime (613100041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153275009 + ... + 153275012.

Almost surely, 2^613100042 is an apocalyptic number.

613100042 is a deficient number, since it is larger than the sum of its proper divisors (306550024).

613100042 is a wasteful number, since it uses less digits than its factorization.

613100042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306550023.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 613100042 is about 24760.8570530182. The cubic root of 613100042 is about 849.5268610204.

Adding to 613100042 its reverse (240001316), we get a palindrome (853101358).

The spelling of 613100042 in words is "six hundred thirteen million, one hundred thousand, forty-two".