146140394 has 16 divisors (see below), whose sum is σ = 222085248. Its totient is φ = 72116352.

The previous prime is 146140373. The next prime is 146140399. The reversal of 146140394 is 493041641.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 146140394.

It is not an unprimeable number, because it can be changed into a prime (146140399) 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, 89009 + ... + 90635.

It is an arithmetic number, because the mean of its divisors is an integer number (13880328).

Almost surely, 2^146140394 is an apocalyptic number.

146140394 is a deficient number, since it is larger than the sum of its proper divisors (75944854).

146140394 is a wasteful number, since it uses less digits than its factorization.

146140394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 146140394 is about 12088.8541227033. The cubic root of 146140394 is about 526.7324704583.

The spelling of 146140394 in words is "one hundred forty-six million, one hundred forty thousand, three hundred ninety-four".