125144501 has 8 divisors (see below), whose sum is σ = 127886040. Its totient is φ = 122417152.

The previous prime is 125144473. The next prime is 125144519. The reversal of 125144501 is 105441521.

It can be written as a sum of positive squares in 4 ways, for example, as 45024100 + 80120401 = 6710^2 + 8951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125144501 is a prime.

It is a super-2 number, since 2×125144501² = 31322292261078002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125144521) 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 7 ways as a sum of consecutive naturals, for example, 15365 + ... + 22053.

It is an arithmetic number, because the mean of its divisors is an integer number (15985755).

Almost surely, 2^125144501 is an apocalyptic number.

It is an amenable number.

125144501 is a deficient number, since it is larger than the sum of its proper divisors (2741539).

125144501 is an equidigital number, since it uses as much as digits as its factorization.

125144501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7095.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 125144501 is about 11186.8003021418. The cubic root of 125144501 is about 500.1925938057.

The spelling of 125144501 in words is "one hundred twenty-five million, one hundred forty-four thousand, five hundred one".