126735442 has 8 divisors (see below), whose sum is σ = 201285756. Its totient is φ = 59640192.

The previous prime is 126735421. The next prime is 126735443. The reversal of 126735442 is 244537621.

It can be written as a sum of positive squares in 2 ways, for example, as 102637161 + 24098281 = 10131^2 + 4909^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 3727513 = 126735442 / (1 + 2 + 6 + 7 + 3 + 5 + 4 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 126735398 and 126735407.

It is not an unprimeable number, because it can be changed into a prime (126735443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863723 + ... + 1863790.

Almost surely, 2^126735442 is an apocalyptic number.

126735442 is a deficient number, since it is larger than the sum of its proper divisors (74550314).

126735442 is a wasteful number, since it uses less digits than its factorization.

126735442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727532.

The product of its digits is 40320, while the sum is 34.

The square root of 126735442 is about 11257.6836871534. The cubic root of 126735442 is about 502.3032960290.

The spelling of 126735442 in words is "one hundred twenty-six million, seven hundred thirty-five thousand, four hundred forty-two".