149447800 has 24 divisors (see below), whose sum is σ = 347466600. Its totient is φ = 59779040.

The previous prime is 149447791. The next prime is 149447801. The reversal of 149447800 is 8744941.

It is a self number, because there is not a number n which added to its sum of digits gives 149447800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149447801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 373420 + ... + 373819.

It is an arithmetic number, because the mean of its divisors is an integer number (14477775).

Almost surely, 2^149447800 is an apocalyptic number.

149447800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149447800 is an abundant number, since it is smaller than the sum of its proper divisors (198018800).

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

149447800 is a wasteful number, since it uses less digits than its factorization.

149447800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747255 (or 747246 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 149447800 is about 12224.8844575317. The cubic root of 149447800 is about 530.6764828057.

It can be divided in two parts, 1494 and 47800, that added together give a palindrome (49294).

The spelling of 149447800 in words is "one hundred forty-nine million, four hundred forty-seven thousand, eight hundred".