126929542 has 4 divisors (see below), whose sum is σ = 190394316. Its totient is φ = 63464770.

The previous prime is 126929527. The next prime is 126929587. The reversal of 126929542 is 245929621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245929621 = 7 ⋅35132803.

It is a super-2 number, since 2×126929542² = 32222217264659528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 126929495 and 126929504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31732384 + ... + 31732387.

It is an arithmetic number, because the mean of its divisors is an integer number (47598579).

Almost surely, 2^126929542 is an apocalyptic number.

126929542 is a deficient number, since it is larger than the sum of its proper divisors (63464774).

126929542 is an equidigital number, since it uses as much as digits as its factorization.

126929542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63464773.

The product of its digits is 77760, while the sum is 40.

The square root of 126929542 is about 11266.3011676415. The cubic root of 126929542 is about 502.5595972316.

The spelling of 126929542 in words is "one hundred twenty-six million, nine hundred twenty-nine thousand, five hundred forty-two".