145436651 has 4 divisors (see below), whose sum is σ = 145566600. Its totient is φ = 145306704.

The previous prime is 145436623. The next prime is 145436657. The reversal of 145436651 is 156634541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145436651 - 2²² = 141242347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145436657) 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, 63281 + ... + 65538.

It is an arithmetic number, because the mean of its divisors is an integer number (36391650).

Almost surely, 2^145436651 is an apocalyptic number.

145436651 is a deficient number, since it is larger than the sum of its proper divisors (129949).

145436651 is a wasteful number, since it uses less digits than its factorization.

145436651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129948.

The product of its digits is 43200, while the sum is 35.

The square root of 145436651 is about 12059.7118953978. The cubic root of 145436651 is about 525.8856115141.

The spelling of 145436651 in words is "one hundred forty-five million, four hundred thirty-six thousand, six hundred fifty-one".