146169690 has 16 divisors (see below), whose sum is σ = 350807328. Its totient is φ = 38978576.

The previous prime is 146169677. The next prime is 146169697. The reversal of 146169690 is 96961641.

It is a super-2 number, since 2×146169690² = 42731156549392200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146169697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436132 + ... + 2436191.

It is an arithmetic number, because the mean of its divisors is an integer number (21925458).

Almost surely, 2^146169690 is an apocalyptic number.

146169690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146169690 is an abundant number, since it is smaller than the sum of its proper divisors (204637638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146169690 is a wasteful number, since it uses less digits than its factorization.

146169690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872333.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 146169690 is about 12090.0657566450. The cubic root of 146169690 is about 526.7676652072.

The spelling of 146169690 in words is "one hundred forty-six million, one hundred sixty-nine thousand, six hundred ninety".