125447051 has 4 divisors (see below), whose sum is σ = 125469792. Its totient is φ = 125424312.

The previous prime is 125447033. The next prime is 125447053. The reversal of 125447051 is 150744521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150744521 = 6709 ⋅22469.

It is a cyclic number.

It is not a de Polignac number, because 125447051 - 2¹⁴ = 125430667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125447053) 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, 2750 + ... + 16076.

It is an arithmetic number, because the mean of its divisors is an integer number (31367448).

Almost surely, 2^125447051 is an apocalyptic number.

125447051 is a deficient number, since it is larger than the sum of its proper divisors (22741).

125447051 is an equidigital number, since it uses as much as digits as its factorization.

125447051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22740.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 125447051 is about 11200.3147723624. The cubic root of 125447051 is about 500.5953588144.

It can be divided in two parts, 1254470 and 51, that added together give a palindrome (1254521).

The spelling of 125447051 in words is "one hundred twenty-five million, four hundred forty-seven thousand, fifty-one".