125741899 has 4 divisors (see below), whose sum is σ = 126015120. Its totient is φ = 125468680.

The previous prime is 125741887. The next prime is 125741977. The reversal of 125741899 is 998147521.

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 125741899 - 2¹⁷ = 125610827 is a prime.

It is a super-2 number, since 2×125741899² = 31622050328252402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125741879) 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, 135919 + ... + 136840.

It is an arithmetic number, because the mean of its divisors is an integer number (31503780).

Almost surely, 2^125741899 is an apocalyptic number.

125741899 is a deficient number, since it is larger than the sum of its proper divisors (273221).

125741899 is an equidigital number, since it uses as much as digits as its factorization.

125741899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273220.

The product of its digits is 181440, while the sum is 46.

The square root of 125741899 is about 11213.4695344483. The cubic root of 125741899 is about 500.9872480662.

The spelling of 125741899 in words is "one hundred twenty-five million, seven hundred forty-one thousand, eight hundred ninety-nine".