147820949 has 8 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 143970400.

The previous prime is 147820891. The next prime is 147820973. The reversal of 147820949 is 949028741.

147820949 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 cyclic number.

It is not a de Polignac number, because 147820949 - 2²⁴ = 131043733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147820999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24284 + ... + 29754.

It is an arithmetic number, because the mean of its divisors is an integer number (18960480).

Almost surely, 2^147820949 is an apocalyptic number.

It is an amenable number.

147820949 is a deficient number, since it is larger than the sum of its proper divisors (3862891).

147820949 is an equidigital number, since it uses as much as digits as its factorization.

147820949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 147820949 is about 12158.1638827580. The cubic root of 147820949 is about 528.7438496491.

The spelling of 147820949 in words is "one hundred forty-seven million, eight hundred twenty thousand, nine hundred forty-nine".