126142031 has 8 divisors (see below), whose sum is σ = 130106304. Its totient is φ = 122231200.

The previous prime is 126142021. The next prime is 126142043. The reversal of 126142031 is 130241621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126142031 is a prime.

It is a super-2 number, since 2×126142031² = 31823623969609922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126141994 and 126142012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126142021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8540 + ... + 18033.

It is an arithmetic number, because the mean of its divisors is an integer number (16263288).

Almost surely, 2^126142031 is an apocalyptic number.

126142031 is a deficient number, since it is larger than the sum of its proper divisors (3964273).

126142031 is a wasteful number, since it uses less digits than its factorization.

126142031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26721.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 126142031 is about 11231.2969420277. The cubic root of 126142031 is about 501.5180941157.

Adding to 126142031 its reverse (130241621), we get a palindrome (256383652).

The spelling of 126142031 in words is "one hundred twenty-six million, one hundred forty-two thousand, thirty-one".