146161457 has 4 divisors (see below), whose sum is σ = 157404660. Its totient is φ = 134918256.

The previous prime is 146161453. The next prime is 146161459. The reversal of 146161457 is 754161641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 754161641 = 4483 ⋅168227.

It can be written as a sum of positive squares in 2 ways, for example, as 56310016 + 89851441 = 7504^2 + 9479^2 .

It is a cyclic number.

It is not a de Polignac number, because 146161457 - 2² = 146161453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146161451) 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, 5621582 + ... + 5621607.

It is an arithmetic number, because the mean of its divisors is an integer number (39351165).

Almost surely, 2^146161457 is an apocalyptic number.

It is an amenable number.

146161457 is a deficient number, since it is larger than the sum of its proper divisors (11243203).

146161457 is a wasteful number, since it uses less digits than its factorization.

146161457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11243202.

The product of its digits is 20160, while the sum is 35.

The square root of 146161457 is about 12089.7252656957. The cubic root of 146161457 is about 526.7577749680.

The spelling of 146161457 in words is "one hundred forty-six million, one hundred sixty-one thousand, four hundred fifty-seven".