146361491 has 4 divisors (see below), whose sum is σ = 146394000. Its totient is φ = 146328984.

The previous prime is 146361473. The next prime is 146361511. The reversal of 146361491 is 194163641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146361491 - 2²² = 142167187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146361451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8156 + ... + 18953.

It is an arithmetic number, because the mean of its divisors is an integer number (36598500).

Almost surely, 2^146361491 is an apocalyptic number.

146361491 is a deficient number, since it is larger than the sum of its proper divisors (32509).

146361491 is an equidigital number, since it uses as much as digits as its factorization.

146361491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32508.

The product of its digits is 15552, while the sum is 35.

The square root of 146361491 is about 12097.9953298057. The cubic root of 146361491 is about 526.9979692356.

The spelling of 146361491 in words is "one hundred forty-six million, three hundred sixty-one thousand, four hundred ninety-one".