185228151225 has 48 divisors (see below), whose sum is σ = 330071582400. Its totient is φ = 91114456320.

The previous prime is 185228151211. The next prime is 185228151257. The reversal of 185228151225 is 522151822581.

It is not a de Polignac number, because 185228151225 - 2¹³ = 185228143033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1120986 + ... + 1275564.

It is an arithmetic number, because the mean of its divisors is an integer number (6876491300).

Almost surely, 2^185228151225 is an apocalyptic number.

185228151225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

185228151225 is a deficient number, since it is larger than the sum of its proper divisors (144843431175).

185228151225 is a wasteful number, since it uses less digits than its factorization.

185228151225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155834 (or 155829 counting only the distinct ones).

The product of its digits is 128000, while the sum is 42.

The spelling of 185228151225 in words is "one hundred eighty-five billion, two hundred twenty-eight million, one hundred fifty-one thousand, two hundred twenty-five".