126531022 has 4 divisors (see below), whose sum is σ = 189796536. Its totient is φ = 63265510.

The previous prime is 126531011. The next prime is 126531023. The reversal of 126531022 is 220135621.

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

It is a junction number, because it is equal to n+sod(n) for n = 126530984 and 126531002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126531023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31632754 + ... + 31632757.

It is an arithmetic number, because the mean of its divisors is an integer number (47449134).

Almost surely, 2^126531022 is an apocalyptic number.

126531022 is a deficient number, since it is larger than the sum of its proper divisors (63265514).

126531022 is an equidigital number, since it uses as much as digits as its factorization.

126531022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63265513.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 126531022 is about 11248.6008907775. The cubic root of 126531022 is about 502.0330845959.

Adding to 126531022 its reverse (220135621), we get a palindrome (346666643).

The spelling of 126531022 in words is "one hundred twenty-six million, five hundred thirty-one thousand, twenty-two".