147961 has 4 divisors (see below), whose sum is σ = 161424. Its totient is φ = 134500.

The previous prime is 147949. The next prime is 147977. The reversal of 147961 is 169741.

147961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 147961 - 2⁹ = 147449 is a prime.

It is a Duffinian number.

147961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (147661) 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, 6715 + ... + 6736.

It is an arithmetic number, because the mean of its divisors is an integer number (40356).

2¹⁴⁷⁹⁶¹ is an apocalyptic number.

147961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

147961 is a deficient number, since it is larger than the sum of its proper divisors (13463).

147961 is a wasteful number, since it uses less digits than its factorization.

147961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13462.

The product of its digits is 1512, while the sum is 28.

The square root of 147961 is about 384.6569900574. The cubic root of 147961 is about 52.8910780727.

It can be divided in two parts, 1479 and 61, that added together give a triangular number (1540 = T₅₅).

The spelling of 147961 in words is "one hundred forty-seven thousand, nine hundred sixty-one".