149171803305 has 64 divisors (see below), whose sum is σ = 284304703488. Its totient is φ = 65352199680.

The previous prime is 149171803289. The next prime is 149171803343. The reversal of 149171803305 is 503308171941.

It is not a de Polignac number, because 149171803305 - 2⁴ = 149171803289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 112797 + ... + 557733.

It is an arithmetic number, because the mean of its divisors is an integer number (4442260992).

Almost surely, 2^149171803305 is an apocalyptic number.

149171803305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149171803305 is a deficient number, since it is larger than the sum of its proper divisors (135132900183).

149171803305 is a wasteful number, since it uses less digits than its factorization.

149171803305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445086.

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 149171803305 in words is "one hundred forty-nine billion, one hundred seventy-one million, eight hundred three thousand, three hundred five".