146457121 has 2 divisors, whose sum is σ = 146457122. Its totient is φ = 146457120.

The previous prime is 146457107. The next prime is 146457161. The reversal of 146457121 is 121754641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135140625 + 11316496 = 11625^2 + 3364^2 .

It is a cyclic number.

It is not a de Polignac number, because 146457121 - 2²⁵ = 112902689 is a prime.

It is not a weakly prime, because it can be changed into another prime (146457161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73228560 + 73228561.

It is an arithmetic number, because the mean of its divisors is an integer number (73228561).

Almost surely, 2^146457121 is an apocalyptic number.

It is an amenable number.

146457121 is a deficient number, since it is larger than the sum of its proper divisors (1).

146457121 is an equidigital number, since it uses as much as digits as its factorization.

146457121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 146457121 is about 12101.9469921166. The cubic root of 146457121 is about 527.1127212861.

It can be divided in two parts, 1464 and 57121, that added together give a palindrome (58585).

The spelling of 146457121 in words is "one hundred forty-six million, four hundred fifty-seven thousand, one hundred twenty-one".