126531254 has 4 divisors (see below), whose sum is σ = 189796884. Its totient is φ = 63265626.

The previous prime is 126531239. The next prime is 126531269. The reversal of 126531254 is 452135621.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (126531239) and next prime (126531269).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31632812 + ... + 31632815.

It is an arithmetic number, because the mean of its divisors is an integer number (47449221).

Almost surely, 2^126531254 is an apocalyptic number.

126531254 is a deficient number, since it is larger than the sum of its proper divisors (63265630).

126531254 is an equidigital number, since it uses as much as digits as its factorization.

126531254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63265629.

The product of its digits is 7200, while the sum is 29.

The square root of 126531254 is about 11248.6112031664. The cubic root of 126531254 is about 502.0333914287.

Adding to 126531254 its reverse (452135621), we get a palindrome (578666875).

The spelling of 126531254 in words is "one hundred twenty-six million, five hundred thirty-one thousand, two hundred fifty-four".