147021261 has 8 divisors (see below), whose sum is σ = 196086144. Its totient is φ = 97985280.

The previous prime is 147021227. The next prime is 147021283. The reversal of 147021261 is 162120741.

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

It is not a de Polignac number, because 147021261 - 2¹⁴ = 147004877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147021211) 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, 11820 + ... + 20826.

It is an arithmetic number, because the mean of its divisors is an integer number (24510768).

Almost surely, 2^147021261 is an apocalyptic number.

It is an amenable number.

147021261 is a deficient number, since it is larger than the sum of its proper divisors (49064883).

147021261 is an equidigital number, since it uses as much as digits as its factorization.

147021261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14451.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 147021261 is about 12125.2324101437. The cubic root of 147021261 is about 527.7886514949.

The spelling of 147021261 in words is "one hundred forty-seven million, twenty-one thousand, two hundred sixty-one".