147072261 has 16 divisors (see below), whose sum is σ = 226332288. Its totient is φ = 83208000.

The previous prime is 147072257. The next prime is 147072271. The reversal of 147072261 is 162270741.

It is not a de Polignac number, because 147072261 - 2² = 147072257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147072221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32550 + ... + 36791.

It is an arithmetic number, because the mean of its divisors is an integer number (14145768).

Almost surely, 2^147072261 is an apocalyptic number.

It is an amenable number.

147072261 is a deficient number, since it is larger than the sum of its proper divisors (79260027).

147072261 is a wasteful number, since it uses less digits than its factorization.

147072261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69452.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 147072261 is about 12127.3352802666. The cubic root of 147072261 is about 527.8496723958.

The spelling of 147072261 in words is "one hundred forty-seven million, seventy-two thousand, two hundred sixty-one".