146989490 has 8 divisors (see below), whose sum is σ = 264581100. Its totient is φ = 58795792.

The previous prime is 146989489. The next prime is 146989499. The reversal of 146989490 is 94989641.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 145419481 + 1570009 = 12059^2 + 1253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (146989499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7349465 + ... + 7349484.

Almost surely, 2^146989490 is an apocalyptic number.

146989490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146989490 is a deficient number, since it is larger than the sum of its proper divisors (117591610).

146989490 is a wasteful number, since it uses less digits than its factorization.

146989490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14698956.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 146989490 is about 12123.9222201398. The cubic root of 146989490 is about 527.7506307325.

The spelling of 146989490 in words is "one hundred forty-six million, nine hundred eighty-nine thousand, four hundred ninety".