172937461 has 2 divisors, whose sum is σ = 172937462. Its totient is φ = 172937460.

The previous prime is 172937441. The next prime is 172937477. The reversal of 172937461 is 164739271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166255236 + 6682225 = 12894^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 172937461 - 2⁷ = 172937333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172937441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86468730 + 86468731.

It is an arithmetic number, because the mean of its divisors is an integer number (86468731).

Almost surely, 2^172937461 is an apocalyptic number.

It is an amenable number.

172937461 is a deficient number, since it is larger than the sum of its proper divisors (1).

172937461 is an equidigital number, since it uses as much as digits as its factorization.

172937461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 172937461 is about 13150.5688470119. The cubic root of 172937461 is about 557.1383147402.

The spelling of 172937461 in words is "one hundred seventy-two million, nine hundred thirty-seven thousand, four hundred sixty-one".