146922145 has 4 divisors (see below), whose sum is σ = 176306580. Its totient is φ = 117537712.

The previous prime is 146922119. The next prime is 146922161. The reversal of 146922145 is 541229641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541229641 = 307 ⋅1762963.

It can be written as a sum of positive squares in 2 ways, for example, as 50253921 + 96668224 = 7089^2 + 9832^2 .

It is a cyclic number.

It is not a de Polignac number, because 146922145 - 2¹⁹ = 146397857 is a prime.

It is a super-2 number, since 2×146922145² = 43172233382802050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 146922145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14692210 + ... + 14692219.

It is an arithmetic number, because the mean of its divisors is an integer number (44076645).

Almost surely, 2^146922145 is an apocalyptic number.

It is an amenable number.

146922145 is a deficient number, since it is larger than the sum of its proper divisors (29384435).

146922145 is an equidigital number, since it uses as much as digits as its factorization.

146922145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29384434.

The product of its digits is 17280, while the sum is 34.

The square root of 146922145 is about 12121.1445416677. The cubic root of 146922145 is about 527.6700199907.

The spelling of 146922145 in words is "one hundred forty-six million, nine hundred twenty-two thousand, one hundred forty-five".