145516874 has 8 divisors (see below), whose sum is σ = 219537540. Its totient is φ = 72337696.

The previous prime is 145516873. The next prime is 145516901. The reversal of 145516874 is 478615541.

It can be written as a sum of positive squares in 2 ways, for example, as 145033849 + 483025 = 12043^2 + 695^2 .

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

It is not an unprimeable number, because it can be changed into a prime (145516873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209939 + ... + 210630.

Almost surely, 2^145516874 is an apocalyptic number.

145516874 is a deficient number, since it is larger than the sum of its proper divisors (74020666).

145516874 is a wasteful number, since it uses less digits than its factorization.

145516874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420744.

The product of its digits is 134400, while the sum is 41.

The square root of 145516874 is about 12063.0375113402. The cubic root of 145516874 is about 525.9822867480.

The spelling of 145516874 in words is "one hundred forty-five million, five hundred sixteen thousand, eight hundred seventy-four".