147986990 has 8 divisors (see below), whose sum is σ = 266376600. Its totient is φ = 59194792.

The previous prime is 147986959. The next prime is 147987019. The reversal of 147986990 is 99689741.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7399340 + ... + 7399359.

It is an arithmetic number, because the mean of its divisors is an integer number (33297075).

Almost surely, 2^147986990 is an apocalyptic number.

147986990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147986990 is a deficient number, since it is larger than the sum of its proper divisors (118389610).

147986990 is a wasteful number, since it uses less digits than its factorization.

147986990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14798706.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 147986990 is about 12164.9903411388. The cubic root of 147986990 is about 528.9417474148.

The spelling of 147986990 in words is "one hundred forty-seven million, nine hundred eighty-six thousand, nine hundred ninety".