146287442 has 16 divisors (see below), whose sum is σ = 255897600. Its totient is φ = 62694324.

The previous prime is 146287423. The next prime is 146287451. The reversal of 146287442 is 244782641.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 146287396 and 146287405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105938 + ... + 107309.

It is an arithmetic number, because the mean of its divisors is an integer number (15993600).

Almost surely, 2^146287442 is an apocalyptic number.

146287442 is a deficient number, since it is larger than the sum of its proper divisors (109610158).

146287442 is an equidigital number, since it uses as much as digits as its factorization.

146287442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213270 (or 213256 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 146287442 is about 12094.9345595584. The cubic root of 146287442 is about 526.9090791518.

The spelling of 146287442 in words is "one hundred forty-six million, two hundred eighty-seven thousand, four hundred forty-two".