125435019 has 8 divisors (see below), whose sum is σ = 167311872. Its totient is φ = 83590760.

The previous prime is 125434997. The next prime is 125435029. The reversal of 125435019 is 910534521.

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

It is a cyclic number.

It is not a de Polignac number, because 125435019 - 2⁵ = 125434987 is a prime.

It is a super-3 number, since 3×125435019³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (125435029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3022 + ... + 16124.

It is an arithmetic number, because the mean of its divisors is an integer number (20913984).

Almost surely, 2^125435019 is an apocalyptic number.

125435019 is a deficient number, since it is larger than the sum of its proper divisors (41876853).

125435019 is a wasteful number, since it uses less digits than its factorization.

125435019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16297.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 125435019 is about 11199.7776317211. Note that the first 3 decimals coincide. The cubic root of 125435019 is about 500.5793537725.

The spelling of 125435019 in words is "one hundred twenty-five million, four hundred thirty-five thousand, nineteen".