145365858 has 24 divisors (see below), whose sum is σ = 343592496. Its totient is φ = 44050200.

The previous prime is 145365841. The next prime is 145365887. The reversal of 145365858 is 858563541.

145365858 is a `hidden beast` number, since 14 + 53 + 6 + 585 + 8 = 666.

It is a super-2 number, since 2×145365858² = 42262465344152328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366888 + ... + 367283.

It is an arithmetic number, because the mean of its divisors is an integer number (14316354).

Almost surely, 2^145365858 is an apocalyptic number.

145365858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

145365858 is an abundant number, since it is smaller than the sum of its proper divisors (198226638).

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

145365858 is a wasteful number, since it uses less digits than its factorization.

145365858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734190 (or 734187 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 145365858 is about 12056.7764348519. The cubic root of 145365858 is about 525.8002706640.

The spelling of 145365858 in words is "one hundred forty-five million, three hundred sixty-five thousand, eight hundred fifty-eight".