146426689 has 2 divisors, whose sum is σ = 146426690. Its totient is φ = 146426688.

The previous prime is 146426659. The next prime is 146426719. The reversal of 146426689 is 986624641.

It is a balanced prime because it is at equal distance from previous prime (146426659) and next prime (146426719).

It can be written as a sum of positive squares in only one way, i.e., 121176064 + 25250625 = 11008^2 + 5025^2 .

It is a cyclic number.

It is not a de Polignac number, because 146426689 - 2⁷ = 146426561 is a prime.

It is not a weakly prime, because it can be changed into another prime (146426639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73213344 + 73213345.

It is an arithmetic number, because the mean of its divisors is an integer number (73213345).

Almost surely, 2^146426689 is an apocalyptic number.

It is an amenable number.

146426689 is a deficient number, since it is larger than the sum of its proper divisors (1).

146426689 is an equidigital number, since it uses as much as digits as its factorization.

146426689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The square root of 146426689 is about 12100.6896084479. The cubic root of 146426689 is about 527.0762095631.

The spelling of 146426689 in words is "one hundred forty-six million, four hundred twenty-six thousand, six hundred eighty-nine".