146236069 has 4 divisors (see below), whose sum is σ = 167126944. Its totient is φ = 125345196.

The previous prime is 146236061. The next prime is 146236081. The reversal of 146236069 is 960632641.

It is a happy number.

146236069 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, and also an emirpimes, since its reverse is a distinct semiprime: 960632641 = 11783 ⋅81527.

It is a cyclic number.

It is not a de Polignac number, because 146236069 - 2³ = 146236061 is a prime.

It is a super-2 number, since 2×146236069² = 42769975753145522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146236061) 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, 10445427 + ... + 10445440.

It is an arithmetic number, because the mean of its divisors is an integer number (41781736).

Almost surely, 2^146236069 is an apocalyptic number.

It is an amenable number.

146236069 is a deficient number, since it is larger than the sum of its proper divisors (20890875).

146236069 is an equidigital number, since it uses as much as digits as its factorization.

146236069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20890874.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 146236069 is about 12092.8106327685. The cubic root of 146236069 is about 526.8473922222.

The spelling of 146236069 in words is "one hundred forty-six million, two hundred thirty-six thousand, sixty-nine".