1961674141 has 16 divisors (see below), whose sum is σ = 2325913600. Its totient is φ = 1618982640.

The previous prime is 1961674111. The next prime is 1961674159. The reversal of 1961674141 is 1414761691.

It is a cyclic number.

It is not a de Polignac number, because 1961674141 - 2²⁷ = 1827456413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1961674094 and 1961674103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961674111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20470 + ... + 65896.

It is an arithmetic number, because the mean of its divisors is an integer number (145369600).

Almost surely, 2^1961674141 is an apocalyptic number.

It is an amenable number.

1961674141 is a deficient number, since it is larger than the sum of its proper divisors (364239459).

1961674141 is a wasteful number, since it uses less digits than its factorization.

1961674141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45664.

The product of its digits is 36288, while the sum is 40.

The square root of 1961674141 is about 44290.7907019055. The cubic root of 1961674141 is about 1251.8211621528.

The spelling of 1961674141 in words is "one billion, nine hundred sixty-one million, six hundred seventy-four thousand, one hundred forty-one".