125691854 has 4 divisors (see below), whose sum is σ = 188537784. Its totient is φ = 62845926.

The previous prime is 125691847. The next prime is 125691869. The reversal of 125691854 is 458196521.

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

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, 31422962 + ... + 31422965.

It is an arithmetic number, because the mean of its divisors is an integer number (47134446).

Almost surely, 2^125691854 is an apocalyptic number.

125691854 is a deficient number, since it is larger than the sum of its proper divisors (62845930).

125691854 is an equidigital number, since it uses as much as digits as its factorization.

125691854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62845929.

The product of its digits is 86400, while the sum is 41.

The square root of 125691854 is about 11211.2378442347. The cubic root of 125691854 is about 500.9207753048.

The spelling of 125691854 in words is "one hundred twenty-five million, six hundred ninety-one thousand, eight hundred fifty-four".