146991098 has 4 divisors (see below), whose sum is σ = 220486650. Its totient is φ = 73495548.

The previous prime is 146991083. The next prime is 146991127. The reversal of 146991098 is 890199641.

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

It can be written as a sum of positive squares in only one way, i.e., 108513889 + 38477209 = 10417^2 + 6203^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36747773 + ... + 36747776.

Almost surely, 2^146991098 is an apocalyptic number.

146991098 is a deficient number, since it is larger than the sum of its proper divisors (73495552).

146991098 is an equidigital number, since it uses as much as digits as its factorization.

146991098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73495551.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 146991098 is about 12123.9885351315. The cubic root of 146991098 is about 527.7525551783.

The spelling of 146991098 in words is "one hundred forty-six million, nine hundred ninety-one thousand, ninety-eight".