149228857305 has 32 divisors (see below), whose sum is σ = 289413544320. Its totient is φ = 72353384640.

The previous prime is 149228857303. The next prime is 149228857331. The reversal of 149228857305 is 503758822941.

149228857305 is a `hidden beast` number, since 1 + 4 + 9 + 2 + 288 + 57 + 305 = 666.

It is not a de Polignac number, because 149228857305 - 2¹ = 149228857303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149228857303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50243922 + ... + 50246891.

It is an arithmetic number, because the mean of its divisors is an integer number (9044173260).

Almost surely, 2^149228857305 is an apocalyptic number.

149228857305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149228857305 is a deficient number, since it is larger than the sum of its proper divisors (140184687015).

149228857305 is a wasteful number, since it uses less digits than its factorization.

149228857305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100490838 (or 100490832 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 149228857305 in words is "one hundred forty-nine billion, two hundred twenty-eight million, eight hundred fifty-seven thousand, three hundred five".