145704915 has 24 divisors (see below), whose sum is σ = 253159920. Its totient is φ = 77523264.

The previous prime is 145704913. The next prime is 145704917. The reversal of 145704915 is 519407541.

It is an interprime number because it is at equal distance from previous prime (145704913) and next prime (145704917).

It is not a de Polignac number, because 145704915 - 2¹ = 145704913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145704915.

It is not an unprimeable number, because it can be changed into a prime (145704913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16281 + ... + 23589.

It is an arithmetic number, because the mean of its divisors is an integer number (10548330).

Almost surely, 2^145704915 is an apocalyptic number.

145704915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145704915 is a deficient number, since it is larger than the sum of its proper divisors (107455005).

145704915 is a wasteful number, since it uses less digits than its factorization.

145704915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7763 (or 7760 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 145704915 is about 12070.8290933142. The cubic root of 145704915 is about 526.2087522657.

The spelling of 145704915 in words is "one hundred forty-five million, seven hundred four thousand, nine hundred fifteen".