146031145 has 8 divisors (see below), whose sum is σ = 188717256. Its totient is φ = 107838336.

The previous prime is 146031121. The next prime is 146031157. The reversal of 146031145 is 541130641.

It can be written as a sum of positive squares in 4 ways, for example, as 10471696 + 135559449 = 3236^2 + 11643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146031145 - 2¹³ = 146022953 is a prime.

It is a super-2 number, since 2×146031145² = 42650190620022050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123252 + ... + 1123381.

It is an arithmetic number, because the mean of its divisors is an integer number (23589657).

Almost surely, 2^146031145 is an apocalyptic number.

It is an amenable number.

146031145 is a deficient number, since it is larger than the sum of its proper divisors (42686111).

146031145 is a wasteful number, since it uses less digits than its factorization.

146031145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246651.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 146031145 is about 12084.3346941402. The cubic root of 146031145 is about 526.6011826842.

Adding to 146031145 its reverse (541130641), we get a palindrome (687161786).

The spelling of 146031145 in words is "one hundred forty-six million, thirty-one thousand, one hundred forty-five".