145259398 has 16 divisors (see below), whose sum is σ = 227645280. Its totient is φ = 69385536.

The previous prime is 145259381. The next prime is 145259437. The reversal of 145259398 is 893952541.

145259398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145259398² = 42200585414644808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50536 + ... + 53332.

It is an arithmetic number, because the mean of its divisors is an integer number (14227830).

Almost surely, 2^145259398 is an apocalyptic number.

145259398 is a deficient number, since it is larger than the sum of its proper divisors (82385882).

145259398 is a wasteful number, since it uses less digits than its factorization.

145259398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951.

The product of its digits is 388800, while the sum is 46.

The square root of 145259398 is about 12052.3606816258. The cubic root of 145259398 is about 525.6718811229.

The spelling of 145259398 in words is "one hundred forty-five million, two hundred fifty-nine thousand, three hundred ninety-eight".