145090798 has 4 divisors (see below), whose sum is σ = 217636200. Its totient is φ = 72545398.

The previous prime is 145090793. The next prime is 145090807. The reversal of 145090798 is 897090541.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145090793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36272698 + ... + 36272701.

It is an arithmetic number, because the mean of its divisors is an integer number (54409050).

Almost surely, 2^145090798 is an apocalyptic number.

145090798 is a deficient number, since it is larger than the sum of its proper divisors (72545402).

145090798 is an equidigital number, since it uses as much as digits as its factorization.

145090798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72545401.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 145090798 is about 12045.3641705014. The cubic root of 145090798 is about 525.4684230512.

The spelling of 145090798 in words is "one hundred forty-five million, ninety thousand, seven hundred ninety-eight".