149542791284 has 6 divisors (see below), whose sum is σ = 261699884754. Its totient is φ = 74771395640.

The previous prime is 149542791227. The next prime is 149542791323. The reversal of 149542791284 is 482197245941.

It can be written as a sum of positive squares in only one way, i.e., 101722723600 + 47820067684 = 318940^2 + 218678^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18692848907 + ... + 18692848914.

It is an arithmetic number, because the mean of its divisors is an integer number (43616647459).

Almost surely, 2^149542791284 is an apocalyptic number.

It is an amenable number.

149542791284 is a deficient number, since it is larger than the sum of its proper divisors (112157093470).

149542791284 is a wasteful number, since it uses less digits than its factorization.

149542791284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37385697825 (or 37385697823 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 56.

The spelling of 149542791284 in words is "one hundred forty-nine billion, five hundred forty-two million, seven hundred ninety-one thousand, two hundred eighty-four".