149615423971 has 8 divisors (see below), whose sum is σ = 164552480064. Its totient is φ = 135168107520.

The previous prime is 149615423917. The next prime is 149615423983. The reversal of 149615423971 is 179324516941.

It is a happy number.

149615423971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149615423971 - 2⁷ = 149615423843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149615463971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122434270 + ... + 122435491.

It is an arithmetic number, because the mean of its divisors is an integer number (20569060008).

Almost surely, 2^149615423971 is an apocalyptic number.

149615423971 is a deficient number, since it is larger than the sum of its proper divisors (14937056093).

149615423971 is a wasteful number, since it uses less digits than its factorization.

149615423971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244869821.

The product of its digits is 1632960, while the sum is 52.

The spelling of 149615423971 in words is "one hundred forty-nine billion, six hundred fifteen million, four hundred twenty-three thousand, nine hundred seventy-one".