149475572539 has 4 divisors (see below), whose sum is σ = 149476802760. Its totient is φ = 149474342320.

The previous prime is 149475572497. The next prime is 149475572549. The reversal of 149475572539 is 935275574941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935275574941 = 1117 ⋅837310273.

It is not a de Polignac number, because 149475572539 - 2¹⁵ = 149475539771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149475572549) 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, 410074 + ... + 683455.

It is an arithmetic number, because the mean of its divisors is an integer number (37369200690).

Almost surely, 2^149475572539 is an apocalyptic number.

149475572539 is a deficient number, since it is larger than the sum of its proper divisors (1230221).

149475572539 is a wasteful number, since it uses less digits than its factorization.

149475572539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230220.

The product of its digits is 47628000, while the sum is 61.

The spelling of 149475572539 in words is "one hundred forty-nine billion, four hundred seventy-five million, five hundred seventy-two thousand, five hundred thirty-nine".