125349291 has 12 divisors (see below), whose sum is σ = 183095640. Its totient is φ = 82626720.

The previous prime is 125349277. The next prime is 125349311. The reversal of 125349291 is 192943521.

125349291 is a `hidden beast` number, since 1 + 25 + 349 + 291 = 666.

It is not a de Polignac number, because 125349291 - 2²¹ = 123252139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125349391) 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 11 ways as a sum of consecutive naturals, for example, 77445 + ... + 79046.

It is an arithmetic number, because the mean of its divisors is an integer number (15257970).

Almost surely, 2^125349291 is an apocalyptic number.

125349291 is a deficient number, since it is larger than the sum of its proper divisors (57746349).

125349291 is a wasteful number, since it uses less digits than its factorization.

125349291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156586 (or 156583 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 125349291 is about 11195.9497587297. The cubic root of 125349291 is about 500.4652882128.

The spelling of 125349291 in words is "one hundred twenty-five million, three hundred forty-nine thousand, two hundred ninety-one".