125712154 has 4 divisors (see below), whose sum is σ = 188568234. Its totient is φ = 62856076.

The previous prime is 125712101. The next prime is 125712157. The reversal of 125712154 is 451217521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451217521 = 479 ⋅941999.

It can be written as a sum of positive squares in only one way, i.e., 113912929 + 11799225 = 10673^2 + 3435^2 .

It is not an unprimeable number, because it can be changed into a prime (125712157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31428037 + ... + 31428040.

Almost surely, 2^125712154 is an apocalyptic number.

125712154 is a deficient number, since it is larger than the sum of its proper divisors (62856080).

125712154 is an equidigital number, since it uses as much as digits as its factorization.

125712154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62856079.

The product of its digits is 2800, while the sum is 28.

The square root of 125712154 is about 11212.1431492824. The cubic root of 125712154 is about 500.9477411052.

Adding to 125712154 its reverse (451217521), we get a palindrome (576929675).

The spelling of 125712154 in words is "one hundred twenty-five million, seven hundred twelve thousand, one hundred fifty-four".