126154142 has 4 divisors (see below), whose sum is σ = 189231216. Its totient is φ = 63077070.

The previous prime is 126154141. The next prime is 126154153. The reversal of 126154142 is 241451621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241451621 = 263 ⋅918067.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126154141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31538534 + ... + 31538537.

It is an arithmetic number, because the mean of its divisors is an integer number (47307804).

Almost surely, 2^126154142 is an apocalyptic number.

126154142 is a deficient number, since it is larger than the sum of its proper divisors (63077074).

126154142 is an equidigital number, since it uses as much as digits as its factorization.

126154142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63077073.

The product of its digits is 1920, while the sum is 26.

The square root of 126154142 is about 11231.8360921089. The cubic root of 126154142 is about 501.5341439901.

The spelling of 126154142 in words is "one hundred twenty-six million, one hundred fifty-four thousand, one hundred forty-two".