201972074 has 4 divisors (see below), whose sum is σ = 302958114. Its totient is φ = 100986036.

The previous prime is 201972073. The next prime is 201972079. The reversal of 201972074 is 470279102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 201838849 + 133225 = 14207^2 + 365^2 .

It is a super-2 number, since 2×201972074² = 81585437351722952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201972074.

It is not an unprimeable number, because it can be changed into a prime (201972073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50493017 + ... + 50493020.

Almost surely, 2^201972074 is an apocalyptic number.

201972074 is a deficient number, since it is larger than the sum of its proper divisors (100986040).

201972074 is a wasteful number, since it uses less digits than its factorization.

201972074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100986039.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 201972074 is about 14211.6879363431. The cubic root of 201972074 is about 586.7193908509.

The spelling of 201972074 in words is "two hundred one million, nine hundred seventy-two thousand, seventy-four".