147509990 has 8 divisors (see below), whose sum is σ = 265518000. Its totient is φ = 59003992.

The previous prime is 147509983. The next prime is 147509993. The reversal of 147509990 is 99905741.

147509990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147509993) 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, 7375490 + ... + 7375509.

It is an arithmetic number, because the mean of its divisors is an integer number (33189750).

Almost surely, 2^147509990 is an apocalyptic number.

147509990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147509990 is a deficient number, since it is larger than the sum of its proper divisors (118008010).

147509990 is a wasteful number, since it uses less digits than its factorization.

147509990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14751006.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 147509990 is about 12145.3690763188. The cubic root of 147509990 is about 528.3728307791.

The spelling of 147509990 in words is "one hundred forty-seven million, five hundred nine thousand, nine hundred ninety".