126815431274 has 24 divisors (see below), whose sum is σ = 228910336740. Its totient is φ = 52475349696.

The previous prime is 126815431271. The next prime is 126815431307. The reversal of 126815431274 is 472134518621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 126695419249 + 120012025 = 355943^2 + 10955^2 .

It is not an unprimeable number, because it can be changed into a prime (126815431271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22308107 + ... + 22313790.

Almost surely, 2^126815431274 is an apocalyptic number.

126815431274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

126815431274 is a deficient number, since it is larger than the sum of its proper divisors (102094905466).

126815431274 is a wasteful number, since it uses less digits than its factorization.

126815431274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44621942 (or 44621935 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

Adding to 126815431274 its reverse (472134518621), we get a palindrome (598949949895).

The spelling of 126815431274 in words is "one hundred twenty-six billion, eight hundred fifteen million, four hundred thirty-one thousand, two hundred seventy-four".