145907810 has 16 divisors (see below), whose sum is σ = 262899000. Its totient is φ = 58304256.

The previous prime is 145907789. The next prime is 145907813. The reversal of 145907810 is 18709541.

It can be written as a sum of positive squares in 4 ways, for example, as 84143929 + 61763881 = 9173^2 + 7859^2 .

It is a super-2 number, since 2×145907810² = 42578178037992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145907813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3866 + ... + 17514.

Almost surely, 2^145907810 is an apocalyptic number.

145907810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145907810 is a deficient number, since it is larger than the sum of its proper divisors (116991190).

145907810 is a wasteful number, since it uses less digits than its factorization.

145907810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14725.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 145907810 is about 12079.2305218503. The cubic root of 145907810 is about 526.4528886333.

The spelling of 145907810 in words is "one hundred forty-five million, nine hundred seven thousand, eight hundred ten".