215503430149 has 16 divisors (see below), whose sum is σ = 251042682240. Its totient is φ = 181166906880.

The previous prime is 215503430123. The next prime is 215503430167. The reversal of 215503430149 is 941034305512.

It is a cyclic number.

It is not a de Polignac number, because 215503430149 - 2¹³ = 215503421957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215503410149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423712 + ... + 781369.

It is an arithmetic number, because the mean of its divisors is an integer number (15690167640).

Almost surely, 2^215503430149 is an apocalyptic number.

It is an amenable number.

215503430149 is a deficient number, since it is larger than the sum of its proper divisors (35539252091).

215503430149 is a wasteful number, since it uses less digits than its factorization.

215503430149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205580.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 215503430149 in words is "two hundred fifteen billion, five hundred three million, four hundred thirty thousand, one hundred forty-nine".