126534157 has 4 divisors (see below), whose sum is σ = 130615936. Its totient is φ = 122452380.

The previous prime is 126534151. The next prime is 126534169. The reversal of 126534157 is 751435621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 751435621 = 43 ⋅17475247.

It is a cyclic number.

It is not a de Polignac number, because 126534157 - 2⁷ = 126534029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126534151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040843 + ... + 2040904.

It is an arithmetic number, because the mean of its divisors is an integer number (32653984).

Almost surely, 2^126534157 is an apocalyptic number.

It is an amenable number.

126534157 is a deficient number, since it is larger than the sum of its proper divisors (4081779).

126534157 is an equidigital number, since it uses as much as digits as its factorization.

126534157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081778.

The product of its digits is 25200, while the sum is 34.

The square root of 126534157 is about 11248.7402405781. The cubic root of 126534157 is about 502.0372307747.

Adding to 126534157 its reverse (751435621), we get a palindrome (877969778).

The spelling of 126534157 in words is "one hundred twenty-six million, five hundred thirty-four thousand, one hundred fifty-seven".