145961898 has 32 divisors (see below), whose sum is σ = 314176320. Its totient is φ = 45039360.

The previous prime is 145961807. The next prime is 145961911. The reversal of 145961898 is 898169541.

145961898 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 145961898.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5508 + ... + 17951.

It is an arithmetic number, because the mean of its divisors is an integer number (9818010).

Almost surely, 2^145961898 is an apocalyptic number.

145961898 is an abundant number, since it is smaller than the sum of its proper divisors (168214422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145961898 is a wasteful number, since it uses less digits than its factorization.

145961898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23542.

The product of its digits is 622080, while the sum is 51.

The square root of 145961898 is about 12081.4691987357. The cubic root of 145961898 is about 526.5179325950.

The spelling of 145961898 in words is "one hundred forty-five million, nine hundred sixty-one thousand, eight hundred ninety-eight".