125414545 has 4 divisors (see below), whose sum is σ = 150497460. Its totient is φ = 100331632.

The previous prime is 125414539. The next prime is 125414567. The reversal of 125414545 is 545414521.

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: 545414521 = 37 ⋅14740933.

It can be written as a sum of positive squares in 2 ways, for example, as 95570176 + 29844369 = 9776^2 + 5463^2 .

It is a cyclic number.

It is not a de Polignac number, because 125414545 - 2³ = 125414537 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12541450 + ... + 12541459.

It is an arithmetic number, because the mean of its divisors is an integer number (37624365).

Almost surely, 2^125414545 is an apocalyptic number.

It is an amenable number.

125414545 is a deficient number, since it is larger than the sum of its proper divisors (25082915).

125414545 is an equidigital number, since it uses as much as digits as its factorization.

125414545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25082914.

The product of its digits is 16000, while the sum is 31.

The square root of 125414545 is about 11198.8635584152. The cubic root of 125414545 is about 500.5521167764.

The spelling of 125414545 in words is "one hundred twenty-five million, four hundred fourteen thousand, five hundred forty-five".