149865552 has 50 divisors (see below), whose sum is σ = 433758138. Its totient is φ = 49954752.

The previous prime is 149865511. The next prime is 149865581. The reversal of 149865552 is 255568941.

149865552 is a `hidden beast` number, since 1 + 4 + 98 + 6 + 5 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 140280336 + 9585216 = 11844^2 + 3096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149865498 and 149865507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 56523 + ... + 59114.

Almost surely, 2^149865552 is an apocalyptic number.

149865552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149865552 is an abundant number, since it is smaller than the sum of its proper divisors (283892586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149865552 is a wasteful number, since it uses less digits than its factorization.

149865552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115657 (or 115642 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 149865552 is about 12241.9586668147. The cubic root of 149865552 is about 531.1704901168.

The spelling of 149865552 in words is "one hundred forty-nine million, eight hundred sixty-five thousand, five hundred fifty-two".