1672535461 has 2 divisors, whose sum is σ = 1672535462. Its totient is φ = 1672535460.

The previous prime is 1672535411. The next prime is 1672535471. The reversal of 1672535461 is 1645352761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1672319236 + 216225 = 40894^2 + 465^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672535461 - 2¹⁵ = 1672502693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672535411) 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, 836267730 + 836267731.

It is an arithmetic number, because the mean of its divisors is an integer number (836267731).

Almost surely, 2^1672535461 is an apocalyptic number.

It is an amenable number.

1672535461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672535461 is an equidigital number, since it uses as much as digits as its factorization.

1672535461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 1672535461 is about 40896.6436397903. The cubic root of 1672535461 is about 1187.0211162470.

The spelling of 1672535461 in words is "one billion, six hundred seventy-two million, five hundred thirty-five thousand, four hundred sixty-one".