1906125694 has 16 divisors (see below), whose sum is σ = 3126574080. Its totient is φ = 864348760.

The previous prime is 1906125691. The next prime is 1906125709. The reversal of 1906125694 is 4965216091.

It is a super-2 number, since 2×1906125694² = 7266630322653963272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1906125694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1906125691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94174 + ... + 112609.

It is an arithmetic number, because the mean of its divisors is an integer number (195410880).

Almost surely, 2^1906125694 is an apocalyptic number.

1906125694 is a deficient number, since it is larger than the sum of its proper divisors (1220448386).

1906125694 is a wasteful number, since it uses less digits than its factorization.

1906125694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207215.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1906125694 is about 43659.1994200535. The cubic root of 1906125694 is about 1239.8919637925.

The spelling of 1906125694 in words is "one billion, nine hundred six million, one hundred twenty-five thousand, six hundred ninety-four".