125161606 has 4 divisors (see below), whose sum is σ = 187742412. Its totient is φ = 62580802.

The previous prime is 125161571. The next prime is 125161637. The reversal of 125161606 is 606161521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 606161521 = 7 ⋅86594503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31290400 + ... + 31290403.

It is an arithmetic number, because the mean of its divisors is an integer number (46935603).

Almost surely, 2^125161606 is an apocalyptic number.

125161606 is a deficient number, since it is larger than the sum of its proper divisors (62580806).

125161606 is an equidigital number, since it uses as much as digits as its factorization.

125161606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62580805.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 125161606 is about 11187.5647931085. The cubic root of 125161606 is about 500.2153818746.

The spelling of 125161606 in words is "one hundred twenty-five million, one hundred sixty-one thousand, six hundred six".