125788091 has 12 divisors (see below), whose sum is σ = 148900416. Its totient is φ = 105555120.

The previous prime is 125788067. The next prime is 125788093. The reversal of 125788091 is 190887521.

125788091 = T₁₃₈₁ + T₁₃₈₂ + ... + T₁₅₀₁.

It is not a de Polignac number, because 125788091 - 2¹⁴ = 125771707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125788093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38411 + ... + 41556.

It is an arithmetic number, because the mean of its divisors is an integer number (12408368).

Almost surely, 2^125788091 is an apocalyptic number.

125788091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

125788091 is a deficient number, since it is larger than the sum of its proper divisors (23112325).

125788091 is a wasteful number, since it uses less digits than its factorization.

125788091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80002 (or 79991 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 125788091 is about 11215.5290111523. The cubic root of 125788091 is about 501.0485873917.

The spelling of 125788091 in words is "one hundred twenty-five million, seven hundred eighty-eight thousand, ninety-one".