125381563 has 8 divisors (see below), whose sum is σ = 126680400. Its totient is φ = 124089120.

The previous prime is 125381539. The next prime is 125381569. The reversal of 125381563 is 365183521.

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 125381563 - 2¹⁷ = 125250491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125381569) 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, 44373 + ... + 47113.

It is an arithmetic number, because the mean of its divisors is an integer number (15835050).

Almost surely, 2^125381563 is an apocalyptic number.

125381563 is a deficient number, since it is larger than the sum of its proper divisors (1298837).

125381563 is a wasteful number, since it uses less digits than its factorization.

125381563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197.

The product of its digits is 21600, while the sum is 34.

The square root of 125381563 is about 11197.3909014556. The cubic root of 125381563 is about 500.5082338883.

The spelling of 125381563 in words is "one hundred twenty-five million, three hundred eighty-one thousand, five hundred sixty-three".