126613042 has 8 divisors (see below), whose sum is σ = 201091356. Its totient is φ = 59582592.

The previous prime is 126613037. The next prime is 126613057. The reversal of 126613042 is 240316621.

It can be written as a sum of positive squares in 2 ways, for example, as 122080401 + 4532641 = 11049^2 + 2129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 126612998 and 126613016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1861923 + ... + 1861990.

Almost surely, 2^126613042 is an apocalyptic number.

126613042 is a deficient number, since it is larger than the sum of its proper divisors (74478314).

126613042 is a wasteful number, since it uses less digits than its factorization.

126613042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723932.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 126613042 is about 11252.2460868931. The cubic root of 126613042 is about 502.1415372081.

Adding to 126613042 its reverse (240316621), we get a palindrome (366929663).

The spelling of 126613042 in words is "one hundred twenty-six million, six hundred thirteen thousand, forty-two".