149981503255 has 4 divisors (see below), whose sum is σ = 179977803912. Its totient is φ = 119985202600.

The previous prime is 149981503253. The next prime is 149981503283. The reversal of 149981503255 is 552305189941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552305189941 = 4523 ⋅122110367.

It is not a de Polignac number, because 149981503255 - 2¹ = 149981503253 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 (149981503253) 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, 14998150321 + ... + 14998150330.

It is an arithmetic number, because the mean of its divisors is an integer number (44994450978).

Almost surely, 2^149981503255 is an apocalyptic number.

149981503255 is a deficient number, since it is larger than the sum of its proper divisors (29996300657).

149981503255 is an equidigital number, since it uses as much as digits as its factorization.

149981503255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29996300656.

The product of its (nonzero) digits is 1944000, while the sum is 52.

The spelling of 149981503255 in words is "one hundred forty-nine billion, nine hundred eighty-one million, five hundred three thousand, two hundred fifty-five".