1954465973 has 2 divisors, whose sum is σ = 1954465974. Its totient is φ = 1954465972.

The previous prime is 1954465949. The next prime is 1954466051. The reversal of 1954465973 is 3795644591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1830299524 + 124166449 = 42782^2 + 11143^2 .

It is an emirp because it is prime and its reverse (3795644591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1954465973 - 2⁸ = 1954465717 is a prime.

It is a super-2 number, since 2×1954465973² = 7639874479229673458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1954465873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977232986 + 977232987.

It is an arithmetic number, because the mean of its divisors is an integer number (977232987).

Almost surely, 2^1954465973 is an apocalyptic number.

It is an amenable number.

1954465973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954465973 is an equidigital number, since it uses as much as digits as its factorization.

1954465973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 53.

The square root of 1954465973 is about 44209.3425985956. The cubic root of 1954465973 is about 1250.2860087942.

The spelling of 1954465973 in words is "one billion, nine hundred fifty-four million, four hundred sixty-five thousand, nine hundred seventy-three".