145602461 has 4 divisors (see below), whose sum is σ = 145626624. Its totient is φ = 145578300.

The previous prime is 145602419. The next prime is 145602463. The reversal of 145602461 is 164206541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 164206541 = 11833 ⋅13877.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145602461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145602463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5156 + ... + 17826.

It is an arithmetic number, because the mean of its divisors is an integer number (36406656).

Almost surely, 2^145602461 is an apocalyptic number.

It is an amenable number.

145602461 is a deficient number, since it is larger than the sum of its proper divisors (24163).

145602461 is a wasteful number, since it uses less digits than its factorization.

145602461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24162.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 145602461 is about 12066.5844794623. The cubic root of 145602461 is about 526.0853868717.

The spelling of 145602461 in words is "one hundred forty-five million, six hundred two thousand, four hundred sixty-one".