1973741945 has 64 divisors (see below), whose sum is σ = 2987212800. Its totient is φ = 1221454080.

The previous prime is 1973741933. The next prime is 1973741947. The reversal of 1973741945 is 5491473791.

It is not a de Polignac number, because 1973741945 - 2⁸ = 1973741689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1973741893 and 1973741902.

It is not an unprimeable number, because it can be changed into a prime (1973741947) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1380491 + ... + 1381919.

It is an arithmetic number, because the mean of its divisors is an integer number (46675200).

Almost surely, 2^1973741945 is an apocalyptic number.

It is an amenable number.

1973741945 is a deficient number, since it is larger than the sum of its proper divisors (1013470855).

1973741945 is a wasteful number, since it uses less digits than its factorization.

1973741945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558.

The product of its digits is 952560, while the sum is 50.

The square root of 1973741945 is about 44426.8156072433. The cubic root of 1973741945 is about 1254.3828958179.

The spelling of 1973741945 in words is "one billion, nine hundred seventy-three million, seven hundred forty-one thousand, nine hundred forty-five".