126523031145 has 128 divisors (see below), whose sum is σ = 239137505280. Its totient is φ = 55934012160.

The previous prime is 126523031123. The next prime is 126523031183. The reversal of 126523031145 is 541130325621.

It is not a de Polignac number, because 126523031145 - 2⁵ = 126523031113 is a prime.

It is a super-2 number, since 2×126523031145² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 108046410 + ... + 108047580.

It is an arithmetic number, because the mean of its divisors is an integer number (1868261760).

Almost surely, 2^126523031145 is an apocalyptic number.

126523031145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126523031145 is a deficient number, since it is larger than the sum of its proper divisors (112614474135).

126523031145 is a wasteful number, since it uses less digits than its factorization.

126523031145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 126523031145 its reverse (541130325621), we get a palindrome (667653356766).

The spelling of 126523031145 in words is "one hundred twenty-six billion, five hundred twenty-three million, thirty-one thousand, one hundred forty-five".