146221462 has 4 divisors (see below), whose sum is σ = 219332196. Its totient is φ = 73110730.

The previous prime is 146221459. The next prime is 146221463. The reversal of 146221462 is 264122641.

146221462 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: 264122641 = 43 ⋅6142387.

It is a self number, because there is not a number n which added to its sum of digits gives 146221462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146221463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36555364 + ... + 36555367.

It is an arithmetic number, because the mean of its divisors is an integer number (54833049).

Almost surely, 2^146221462 is an apocalyptic number.

146221462 is a deficient number, since it is larger than the sum of its proper divisors (73110734).

146221462 is an equidigital number, since it uses as much as digits as its factorization.

146221462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73110733.

The product of its digits is 4608, while the sum is 28.

The square root of 146221462 is about 12092.2066637980. The cubic root of 146221462 is about 526.8298500017.

It can be divided in two parts, 14622146 and 2, that multiplied together give a palindrome (29244292).

The spelling of 146221462 in words is "one hundred forty-six million, two hundred twenty-one thousand, four hundred sixty-two".