145374815 has 16 divisors (see below), whose sum is σ = 176284416. Its totient is φ = 115084800.

The previous prime is 145374811. The next prime is 145374847. The reversal of 145374815 is 518473541.

It is not a de Polignac number, because 145374815 - 2² = 145374811 is a prime.

It is a super-2 number, since 2×145374815² = 42267673672568450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145374811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268445 + ... + 268985.

It is an arithmetic number, because the mean of its divisors is an integer number (11017776).

Almost surely, 2^145374815 is an apocalyptic number.

145374815 is a deficient number, since it is larger than the sum of its proper divisors (30909601).

145374815 is a wasteful number, since it uses less digits than its factorization.

145374815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010.

The product of its digits is 67200, while the sum is 38.

The square root of 145374815 is about 12057.1478799922. The cubic root of 145374815 is about 525.8110698442.

The spelling of 145374815 in words is "one hundred forty-five million, three hundred seventy-four thousand, eight hundred fifteen".