1954982971 has 2 divisors, whose sum is σ = 1954982972. Its totient is φ = 1954982970.

The previous prime is 1954982921. The next prime is 1954982993. The reversal of 1954982971 is 1792894591.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1954982971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1954982921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977491485 + 977491486.

It is an arithmetic number, because the mean of its divisors is an integer number (977491486).

Almost surely, 2^1954982971 is an apocalyptic number.

1954982971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954982971 is an equidigital number, since it uses as much as digits as its factorization.

1954982971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 55.

The square root of 1954982971 is about 44215.1893697177. The cubic root of 1954982971 is about 1250.3962415275.

The spelling of 1954982971 in words is "one billion, nine hundred fifty-four million, nine hundred eighty-two thousand, nine hundred seventy-one".