149918695252 has 12 divisors (see below), whose sum is σ = 262420556020. Its totient is φ = 74941393536.

The previous prime is 149918695219. The next prime is 149918695259. The reversal of 149918695252 is 252596819941.

It can be written as a sum of positive squares in 2 ways, for example, as 107974016836 + 41944678416 = 328594^2 + 204804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149918695259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4469727 + ... + 4503142.

Almost surely, 2^149918695252 is an apocalyptic number.

It is an amenable number.

149918695252 is a deficient number, since it is larger than the sum of its proper divisors (112501860768).

149918695252 is a wasteful number, since it uses less digits than its factorization.

149918695252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977050 (or 8977048 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 61.

The spelling of 149918695252 in words is "one hundred forty-nine billion, nine hundred eighteen million, six hundred ninety-five thousand, two hundred fifty-two".