145703916 has 18 divisors (see below), whose sum is σ = 368307212. Its totient is φ = 48567960.

The previous prime is 145703911. The next prime is 145703941. The reversal of 145703916 is 619307541.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×145703916² = 42459262275470112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4047331 = 145703916 / (1 + 4 + 5 + 7 + 0 + 3 + 9 + 1 + 6).

It is not an unprimeable number, because it can be changed into a prime (145703911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2023630 + ... + 2023701.

Almost surely, 2^145703916 is an apocalyptic number.

It is an amenable number.

145703916 is an abundant number, since it is smaller than the sum of its proper divisors (222603296).

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

145703916 is a wasteful number, since it uses less digits than its factorization.

145703916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047341 (or 4047336 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 145703916 is about 12070.7877124900. The cubic root of 145703916 is about 526.2075496438.

The spelling of 145703916 in words is "one hundred forty-five million, seven hundred three thousand, nine hundred sixteen".