126642074 has 12 divisors (see below), whose sum is σ = 204668394. Its totient is φ = 58423704.

The previous prime is 126642067. The next prime is 126642107. The reversal of 126642074 is 470246621.

It can be written as a sum of positive squares in only one way, i.e., 121771225 + 4870849 = 11035^2 + 2207^2 .

It is a super-3 number, since 3×126642074³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 126642074.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56279 + ... + 58485.

Almost surely, 2^126642074 is an apocalyptic number.

126642074 is a deficient number, since it is larger than the sum of its proper divisors (78026320).

126642074 is an frugal number, since it uses more digits than its factorization.

126642074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429 (or 2222 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 126642074 is about 11253.5360664993. The cubic root of 126642074 is about 502.1799141367.

Adding to 126642074 its reverse (470246621), we get a palindrome (596888695).

The spelling of 126642074 in words is "one hundred twenty-six million, six hundred forty-two thousand, seventy-four".