216054739 has 2 divisors, whose sum is σ = 216054740. Its totient is φ = 216054738.

The previous prime is 216054731. The next prime is 216054767. The reversal of 216054739 is 937450612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216054739 - 2³ = 216054731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216054698 and 216054707.

It is not a weakly prime, because it can be changed into another prime (216054731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108027369 + 108027370.

It is an arithmetic number, because the mean of its divisors is an integer number (108027370).

Almost surely, 2^216054739 is an apocalyptic number.

216054739 is a deficient number, since it is larger than the sum of its proper divisors (1).

216054739 is an equidigital number, since it uses as much as digits as its factorization.

216054739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 216054739 is about 14698.8005973277. The cubic root of 216054739 is about 600.0506799784.

The spelling of 216054739 in words is "two hundred sixteen million, fifty-four thousand, seven hundred thirty-nine".