145272874 has 8 divisors (see below), whose sum is σ = 217983780. Its totient is φ = 72611616.

The previous prime is 145272839. The next prime is 145272889. The reversal of 145272874 is 478272541.

It can be written as a sum of positive squares in 2 ways, for example, as 144841225 + 431649 = 12035^2 + 657^2 .

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

It is a super-2 number, since 2×145272874² = 42208415840439752, which contains 22 as substring.

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, 3939 + ... + 17494.

Almost surely, 2^145272874 is an apocalyptic number.

145272874 is a deficient number, since it is larger than the sum of its proper divisors (72710906).

145272874 is a wasteful number, since it uses less digits than its factorization.

145272874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24824.

The product of its digits is 125440, while the sum is 40.

The square root of 145272874 is about 12052.9197292606. The cubic root of 145272874 is about 525.6881364916.

The spelling of 145272874 in words is "one hundred forty-five million, two hundred seventy-two thousand, eight hundred seventy-four".