147933146 has 4 divisors (see below), whose sum is σ = 221899722. Its totient is φ = 73966572.

The previous prime is 147933143. The next prime is 147933157. The reversal of 147933146 is 641339741.

147933146 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 an emirpimes, since its reverse is a distinct semiprime: 641339741 = 7 ⋅91619963.

It can be written as a sum of positive squares in only one way, i.e., 135606025 + 12327121 = 11645^2 + 3511^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (147933143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36983285 + ... + 36983288.

Almost surely, 2^147933146 is an apocalyptic number.

147933146 is a deficient number, since it is larger than the sum of its proper divisors (73966576).

147933146 is an equidigital number, since it uses as much as digits as its factorization.

147933146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73966575.

The product of its digits is 54432, while the sum is 38.

The square root of 147933146 is about 12162.7770677588. Note that the first 3 decimals coincide. The cubic root of 147933146 is about 528.8775890852.

The spelling of 147933146 in words is "one hundred forty-seven million, nine hundred thirty-three thousand, one hundred forty-six".