1985160951 has 12 divisors (see below), whose sum is σ = 2921558328. Its totient is φ = 1298469744.

The previous prime is 1985160937. The next prime is 1985160953. The reversal of 1985160951 is 1590615891.

It is not a de Polignac number, because 1985160951 - 2¹³ = 1985152759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1985160897 and 1985160906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1985160953) 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 11 ways as a sum of consecutive naturals, for example, 2080405 + ... + 2081358.

It is an arithmetic number, because the mean of its divisors is an integer number (243463194).

Almost surely, 2^1985160951 is an apocalyptic number.

1985160951 is a deficient number, since it is larger than the sum of its proper divisors (936397377).

1985160951 is a wasteful number, since it uses less digits than its factorization.

1985160951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161822 (or 4161819 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 45.

The square root of 1985160951 is about 44555.1450564354. The cubic root of 1985160951 is about 1256.7973065135.

The spelling of 1985160951 in words is "one billion, nine hundred eighty-five million, one hundred sixty thousand, nine hundred fifty-one".