125214501 has 4 divisors (see below), whose sum is σ = 166952672. Its totient is φ = 83476332.

The previous prime is 125214497. The next prime is 125214539. The reversal of 125214501 is 105412521.

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: 105412521 = 3 ⋅35137507.

It is not a de Polignac number, because 125214501 - 2² = 125214497 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125214101) 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 in 3 ways as a sum of consecutive naturals, for example, 20869081 + ... + 20869086.

It is an arithmetic number, because the mean of its divisors is an integer number (41738168).

Almost surely, 2^125214501 is an apocalyptic number.

It is an amenable number.

125214501 is a deficient number, since it is larger than the sum of its proper divisors (41738171).

125214501 is an equidigital number, since it uses as much as digits as its factorization.

125214501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41738170.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 125214501 is about 11189.9285520507. The cubic root of 125214501 is about 500.2858378956.

It can be divided in two parts, 1252 and 14501, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 125214501 in words is "one hundred twenty-five million, two hundred fourteen thousand, five hundred one".