125345623 has 4 divisors (see below), whose sum is σ = 134987608. Its totient is φ = 115703640.

The previous prime is 125345621. The next prime is 125345639. The reversal of 125345623 is 326543521.

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: 326543521 = 5419 ⋅60259.

It is not a de Polignac number, because 125345623 - 2¹ = 125345621 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 (125345621) 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, 4820973 + ... + 4820998.

It is an arithmetic number, because the mean of its divisors is an integer number (33746902).

Almost surely, 2^125345623 is an apocalyptic number.

125345623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125345623 is a deficient number, since it is larger than the sum of its proper divisors (9641985).

125345623 is an equidigital number, since it uses as much as digits as its factorization.

125345623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9641984.

The product of its digits is 21600, while the sum is 31.

The square root of 125345623 is about 11195.7859482932. The cubic root of 125345623 is about 500.4604065881.

The spelling of 125345623 in words is "one hundred twenty-five million, three hundred forty-five thousand, six hundred twenty-three".