145869098 has 4 divisors (see below), whose sum is σ = 218803650. Its totient is φ = 72934548.

The previous prime is 145869089. The next prime is 145869127. The reversal of 145869098 is 890968541.

It is a happy number.

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., 83411689 + 62457409 = 9133^2 + 7903^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36467273 + ... + 36467276.

Almost surely, 2^145869098 is an apocalyptic number.

145869098 is a deficient number, since it is larger than the sum of its proper divisors (72934552).

145869098 is an equidigital number, since it uses as much as digits as its factorization.

145869098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72934551.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 145869098 is about 12077.6279955958. The cubic root of 145869098 is about 526.4063253344.

The spelling of 145869098 in words is "one hundred forty-five million, eight hundred sixty-nine thousand, ninety-eight".