149487731215 has 4 divisors (see below), whose sum is σ = 179385277464. Its totient is φ = 119590184968.

The previous prime is 149487731191. The next prime is 149487731219. The reversal of 149487731215 is 512137784941.

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 149487731215 - 2¹³ = 149487723023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149487731219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14948773117 + ... + 14948773126.

It is an arithmetic number, because the mean of its divisors is an integer number (44846319366).

Almost surely, 2^149487731215 is an apocalyptic number.

149487731215 is a deficient number, since it is larger than the sum of its proper divisors (29897546249).

149487731215 is an equidigital number, since it uses as much as digits as its factorization.

149487731215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29897546248.

The product of its digits is 1693440, while the sum is 52.

The spelling of 149487731215 in words is "one hundred forty-nine billion, four hundred eighty-seven million, seven hundred thirty-one thousand, two hundred fifteen".