1974474065 has 4 divisors (see below), whose sum is σ = 2369368884. Its totient is φ = 1579579248.

The previous prime is 1974474059. The next prime is 1974474071. The reversal of 1974474065 is 5604744791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5604744791 = 281 ⋅19945711.

It is an interprime number because it is at equal distance from previous prime (1974474059) and next prime (1974474071).

It can be written as a sum of positive squares in 2 ways, for example, as 733109776 + 1241364289 = 27076^2 + 35233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1974474065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197447402 + ... + 197447411.

It is an arithmetic number, because the mean of its divisors is an integer number (592342221).

Almost surely, 2^1974474065 is an apocalyptic number.

It is an amenable number.

1974474065 is a deficient number, since it is larger than the sum of its proper divisors (394894819).

1974474065 is an equidigital number, since it uses as much as digits as its factorization.

1974474065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394894818.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 1974474065 is about 44435.0544615397. The cubic root of 1974474065 is about 1254.5379727067.

The spelling of 1974474065 in words is "one billion, nine hundred seventy-four million, four hundred seventy-four thousand, sixty-five".