146287490 has 32 divisors (see below), whose sum is σ = 267079680. Its totient is φ = 57685824.

The previous prime is 146287489. The next prime is 146287523. The reversal of 146287490 is 94782641.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 290579 + ... + 291081.

It is an arithmetic number, because the mean of its divisors is an integer number (8346240).

Almost surely, 2^146287490 is an apocalyptic number.

146287490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146287490 is a deficient number, since it is larger than the sum of its proper divisors (120792190).

146287490 is a wasteful number, since it uses less digits than its factorization.

146287490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 146287490 is about 12094.9365438600. The cubic root of 146287490 is about 526.9091367818.

The spelling of 146287490 in words is "one hundred forty-six million, two hundred eighty-seven thousand, four hundred ninety".