215048723 has 2 divisors, whose sum is σ = 215048724. Its totient is φ = 215048722.

The previous prime is 215048711. The next prime is 215048749. The reversal of 215048723 is 327840512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215048723 - 2⁸ = 215048467 is a prime.

It is equal to p_11864840 and since 215048723 and 11864840 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215048723.

It is not a weakly prime, because it can be changed into another prime (215048123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107524361 + 107524362.

It is an arithmetic number, because the mean of its divisors is an integer number (107524362).

Almost surely, 2^215048723 is an apocalyptic number.

215048723 is a deficient number, since it is larger than the sum of its proper divisors (1).

215048723 is an equidigital number, since it uses as much as digits as its factorization.

215048723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 215048723 is about 14664.5396450076. The cubic root of 215048723 is about 599.1178917402.

The spelling of 215048723 in words is "two hundred fifteen million, forty-eight thousand, seven hundred twenty-three".