149971230427 has 4 divisors (see below), whose sum is σ = 149972570776. Its totient is φ = 149969890080.

The previous prime is 149971230403. The next prime is 149971230439. The reversal of 149971230427 is 724032179941.

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 149971230427 - 2¹⁹ = 149970706139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149971230457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485349 + ... + 731782.

It is an arithmetic number, because the mean of its divisors is an integer number (37493142694).

Almost surely, 2^149971230427 is an apocalyptic number.

149971230427 is a deficient number, since it is larger than the sum of its proper divisors (1340349).

149971230427 is a wasteful number, since it uses less digits than its factorization.

149971230427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340348.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 149971230427 in words is "one hundred forty-nine billion, nine hundred seventy-one million, two hundred thirty thousand, four hundred twenty-seven".