125078011 has 4 divisors (see below), whose sum is σ = 125346312. Its totient is φ = 124809712.

The previous prime is 125077991. The next prime is 125078047. The reversal of 125078011 is 110870521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125078011 - 2⁹ = 125077499 is a prime.

It is a super-2 number, since 2×125078011² = 31289017671432242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125078111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133450 + ... + 134383.

It is an arithmetic number, because the mean of its divisors is an integer number (31336578).

Almost surely, 2^125078011 is an apocalyptic number.

125078011 is a deficient number, since it is larger than the sum of its proper divisors (268301).

125078011 is an equidigital number, since it uses as much as digits as its factorization.

125078011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268300.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 125078011 is about 11183.8281013256. The cubic root of 125078011 is about 500.1039930361.

The spelling of 125078011 in words is "one hundred twenty-five million, seventy-eight thousand, eleven".