970154221 has 2 divisors, whose sum is σ = 970154222. Its totient is φ = 970154220.

The previous prime is 970154209. The next prime is 970154239. The reversal of 970154221 is 122451079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 729594121 + 240560100 = 27011^2 + 15510^2 .

It is a cyclic number.

It is not a de Polignac number, because 970154221 - 2⁷ = 970154093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (970154291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485077110 + 485077111.

It is an arithmetic number, because the mean of its divisors is an integer number (485077111).

Almost surely, 2^970154221 is an apocalyptic number.

It is an amenable number.

970154221 is a deficient number, since it is larger than the sum of its proper divisors (1).

970154221 is an equidigital number, since it uses as much as digits as its factorization.

970154221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 970154221 is about 31147.2987753352. The cubic root of 970154221 is about 989.9507580174.

The spelling of 970154221 in words is "nine hundred seventy million, one hundred fifty-four thousand, two hundred twenty-one".