126837040155 has 32 divisors (see below), whose sum is σ = 232006408704. Its totient is φ = 57963691776.

The previous prime is 126837040061. The next prime is 126837040157. The reversal of 126837040155 is 551040738621.

It is a happy number.

It is not a de Polignac number, because 126837040155 - 2¹⁴ = 126837023771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126837040157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127807 + ... + 519623.

It is an arithmetic number, because the mean of its divisors is an integer number (7250200272).

Almost surely, 2^126837040155 is an apocalyptic number.

126837040155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126837040155 is a deficient number, since it is larger than the sum of its proper divisors (105169368549).

126837040155 is a wasteful number, since it uses less digits than its factorization.

126837040155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394915.

The product of its (nonzero) digits is 201600, while the sum is 42.

Adding to 126837040155 its reverse (551040738621), we get a palindrome (677877778776).

The spelling of 126837040155 in words is "one hundred twenty-six billion, eight hundred thirty-seven million, forty thousand, one hundred fifty-five".