125501039 has 4 divisors (see below), whose sum is σ = 125591520. Its totient is φ = 125410560.

The previous prime is 125501029. The next prime is 125501053. The reversal of 125501039 is 930105521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125501039 - 2²⁰ = 124452463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125500999 and 125501017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125501029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43127 + ... + 45944.

It is an arithmetic number, because the mean of its divisors is an integer number (31397880).

Almost surely, 2^125501039 is an apocalyptic number.

125501039 is a deficient number, since it is larger than the sum of its proper divisors (90481).

125501039 is an equidigital number, since it uses as much as digits as its factorization.

125501039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90480.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 125501039 is about 11202.7246239475. The cubic root of 125501039 is about 500.6671613954.

The spelling of 125501039 in words is "one hundred twenty-five million, five hundred one thousand, thirty-nine".