145815814 has 8 divisors (see below), whose sum is σ = 228233520. Its totient is φ = 69737976.

The previous prime is 145815809. The next prime is 145815841. The reversal of 145815814 is 418518541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145815814² = 42524503224965192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1584909 + ... + 1585000.

It is an arithmetic number, because the mean of its divisors is an integer number (28529190).

Almost surely, 2^145815814 is an apocalyptic number.

145815814 is a deficient number, since it is larger than the sum of its proper divisors (82417706).

145815814 is a wasteful number, since it uses less digits than its factorization.

145815814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169934.

The product of its digits is 25600, while the sum is 37.

The square root of 145815814 is about 12075.4218973914. The cubic root of 145815814 is about 526.3422211684.

The spelling of 145815814 in words is "one hundred forty-five million, eight hundred fifteen thousand, eight hundred fourteen".