146155243 has 4 divisors (see below), whose sum is σ = 157397968. Its totient is φ = 134912520.

The previous prime is 146155223. The next prime is 146155313. The reversal of 146155243 is 342551641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342551641 = 71 ⋅4824671.

It is a cyclic number.

It is not a de Polignac number, because 146155243 - 2⁵ = 146155211 is a prime.

It is a super-2 number, since 2×146155243² = 42722710112778098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146155223) 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, 5621343 + ... + 5621368.

It is an arithmetic number, because the mean of its divisors is an integer number (39349492).

Almost surely, 2^146155243 is an apocalyptic number.

146155243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

146155243 is a deficient number, since it is larger than the sum of its proper divisors (11242725).

146155243 is a wasteful number, since it uses less digits than its factorization.

146155243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11242724.

The product of its digits is 14400, while the sum is 31.

The square root of 146155243 is about 12089.4682678768. The cubic root of 146155243 is about 526.7503098919.

The spelling of 146155243 in words is "one hundred forty-six million, one hundred fifty-five thousand, two hundred forty-three".