146464621 has 4 divisors (see below), whose sum is σ = 152832672. Its totient is φ = 140096572.

The previous prime is 146464603. The next prime is 146464631. The reversal of 146464621 is 126464641.

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, and also an emirpimes, since its reverse is a distinct semiprime: 126464641 = 5107 ⋅24763.

It is a cyclic number.

It is not a de Polignac number, because 146464621 - 2⁵ = 146464589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146464601) 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, 3183991 + ... + 3184036.

It is an arithmetic number, because the mean of its divisors is an integer number (38208168).

Almost surely, 2^146464621 is an apocalyptic number.

It is an amenable number.

146464621 is a deficient number, since it is larger than the sum of its proper divisors (6368051).

146464621 is an equidigital number, since it uses as much as digits as its factorization.

146464621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368050.

The product of its digits is 27648, while the sum is 34.

The square root of 146464621 is about 12102.2568556447. The cubic root of 146464621 is about 527.1217188637.

The spelling of 146464621 in words is "one hundred forty-six million, four hundred sixty-four thousand, six hundred twenty-one".