974540141 has 2 divisors, whose sum is σ = 974540142. Its totient is φ = 974540140.

The previous prime is 974540081. The next prime is 974540143. The reversal of 974540141 is 141045479.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514609225 + 459930916 = 22685^2 + 21446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974540141 is a prime.

Together with 974540143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (974540143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487270070 + 487270071.

It is an arithmetic number, because the mean of its divisors is an integer number (487270071).

Almost surely, 2^974540141 is an apocalyptic number.

It is an amenable number.

974540141 is a deficient number, since it is larger than the sum of its proper divisors (1).

974540141 is an equidigital number, since it uses as much as digits as its factorization.

974540141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 974540141 is about 31217.6254862538. The cubic root of 974540141 is about 991.4403212841.

The spelling of 974540141 in words is "nine hundred seventy-four million, five hundred forty thousand, one hundred forty-one".