149903306971 has 4 divisors (see below), whose sum is σ = 163530880344. Its totient is φ = 136275733600.

The previous prime is 149903306963. The next prime is 149903306981. The reversal of 149903306971 is 179603309941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149903306971 - 2³ = 149903306963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149903306981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6813786670 + ... + 6813786691.

It is an arithmetic number, because the mean of its divisors is an integer number (40882720086).

Almost surely, 2^149903306971 is an apocalyptic number.

149903306971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149903306971 is a deficient number, since it is larger than the sum of its proper divisors (13627573373).

149903306971 is a wasteful number, since it uses less digits than its factorization.

149903306971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13627573372.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The spelling of 149903306971 in words is "one hundred forty-nine billion, nine hundred three million, three hundred six thousand, nine hundred seventy-one".