1954967158 has 4 divisors (see below), whose sum is σ = 2932450740. Its totient is φ = 977483578.

The previous prime is 1954967153. The next prime is 1954967191. The reversal of 1954967158 is 8517694591.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8517694591 = 7 ⋅1216813513.

It is a junction number, because it is equal to n+sod(n) for n = 1954967099 and 1954967108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1954967153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488741788 + ... + 488741791.

It is an arithmetic number, because the mean of its divisors is an integer number (733112685).

Almost surely, 2^1954967158 is an apocalyptic number.

1954967158 is a deficient number, since it is larger than the sum of its proper divisors (977483582).

1954967158 is an equidigital number, since it uses as much as digits as its factorization.

1954967158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977483581.

The product of its digits is 2721600, while the sum is 55.

The square root of 1954967158 is about 44215.0105507168. The cubic root of 1954967158 is about 1250.3928702161.

The spelling of 1954967158 in words is "one billion, nine hundred fifty-four million, nine hundred sixty-seven thousand, one hundred fifty-eight".