145735898 has 80 divisors (see below), whose sum is σ = 290407680. Its totient is φ = 54331200.

The previous prime is 145735823. The next prime is 145735907. The reversal of 145735898 is 898537541.

145735898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (1209600) is a multiple of the sum of its prime divisors (140).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1637438 + ... + 1637526.

It is an arithmetic number, because the mean of its divisors is an integer number (3630096).

Almost surely, 2^145735898 is an apocalyptic number.

145735898 is a deficient number, since it is larger than the sum of its proper divisors (144671782).

145735898 is an equidigital number, since it uses as much as digits as its factorization.

145735898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 140 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 50.

The square root of 145735898 is about 12072.1124083567. The cubic root of 145735898 is about 526.2460476681.

The spelling of 145735898 in words is "one hundred forty-five million, seven hundred thirty-five thousand, eight hundred ninety-eight".