125023547 has 4 divisors (see below), whose sum is σ = 136389336. Its totient is φ = 113657760.

The previous prime is 125023543. The next prime is 125023567. The reversal of 125023547 is 745320521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745320521 = 11 ⋅67756411.

It is a cyclic number.

It is not a de Polignac number, because 125023547 - 2² = 125023543 is a prime.

It is a super-2 number, since 2×125023547² = 31261774608922418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125023543) 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, 5682878 + ... + 5682899.

It is an arithmetic number, because the mean of its divisors is an integer number (34097334).

Almost surely, 2^125023547 is an apocalyptic number.

125023547 is a deficient number, since it is larger than the sum of its proper divisors (11365789).

125023547 is a wasteful number, since it uses less digits than its factorization.

125023547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11365788.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 125023547 is about 11181.3928917644. The cubic root of 125023547 is about 500.0313940288.

The spelling of 125023547 in words is "one hundred twenty-five million, twenty-three thousand, five hundred forty-seven".