145461506 has 8 divisors (see below), whose sum is σ = 225716220. Its totient is φ = 70222768.

The previous prime is 145461457. The next prime is 145461527. The reversal of 145461506 is 605164541.

It can be written as a sum of positive squares in 2 ways, for example, as 145419481 + 42025 = 12059^2 + 205^2 .

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

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, 1253921 + ... + 1254036.

Almost surely, 2^145461506 is an apocalyptic number.

145461506 is a deficient number, since it is larger than the sum of its proper divisors (80254714).

145461506 is a wasteful number, since it uses less digits than its factorization.

145461506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507988.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 145461506 is about 12060.7423486285. The cubic root of 145461506 is about 525.9155676089.

The spelling of 145461506 in words is "one hundred forty-five million, four hundred sixty-one thousand, five hundred six".