125543122 has 4 divisors (see below), whose sum is σ = 188314686. Its totient is φ = 62771560.

The previous prime is 125543111. The next prime is 125543161. The reversal of 125543122 is 221345521.

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

It can be written as a sum of positive squares in only one way, i.e., 80263681 + 45279441 = 8959^2 + 6729^2 .

It is a super-2 number, since 2×125543122² = 31522150963013768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31385779 + ... + 31385782.

Almost surely, 2^125543122 is an apocalyptic number.

125543122 is a deficient number, since it is larger than the sum of its proper divisors (62771564).

125543122 is an equidigital number, since it uses as much as digits as its factorization.

125543122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62771563.

The product of its digits is 2400, while the sum is 25.

The square root of 125543122 is about 11204.6027149560. The cubic root of 125543122 is about 500.7231163679.

Adding to 125543122 its reverse (221345521), we get a palindrome (346888643).

The spelling of 125543122 in words is "one hundred twenty-five million, five hundred forty-three thousand, one hundred twenty-two".