146669851 has 2 divisors, whose sum is σ = 146669852. Its totient is φ = 146669850.

The previous prime is 146669821. The next prime is 146669857. The reversal of 146669851 is 158966641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146669851 - 2²³ = 138281243 is a prime.

It is not a weakly prime, because it can be changed into another prime (146669857) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73334925 + 73334926.

It is an arithmetic number, because the mean of its divisors is an integer number (73334926).

Almost surely, 2^146669851 is an apocalyptic number.

146669851 is the 7660-th centered pentagonal number.

146669851 is a deficient number, since it is larger than the sum of its proper divisors (1).

146669851 is an equidigital number, since it uses as much as digits as its factorization.

146669851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 46.

The square root of 146669851 is about 12110.7328845120. The cubic root of 146669851 is about 527.3678094672.

It can be divided in two parts, 1466 and 69851, that added together give a palindrome (71317).

The spelling of 146669851 in words is "one hundred forty-six million, six hundred sixty-nine thousand, eight hundred fifty-one".