125001157 has 8 divisors (see below), whose sum is σ = 125979392. Its totient is φ = 124027200.

The previous prime is 125001143. The next prime is 125001181. The reversal of 125001157 is 751100521.

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-125001157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125001137) 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, 78988 + ... + 80554.

It is an arithmetic number, because the mean of its divisors is an integer number (15747424).

Almost surely, 2^125001157 is an apocalyptic number.

It is an amenable number.

125001157 is a deficient number, since it is larger than the sum of its proper divisors (978235).

125001157 is a wasteful number, since it uses less digits than its factorization.

125001157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 125001157 is about 11180.3916299922. The cubic root of 125001157 is about 500.0015426619.

Adding to 125001157 its reverse (751100521), we get a palindrome (876101678).

The spelling of 125001157 in words is "one hundred twenty-five million, one thousand, one hundred fifty-seven".