145254501 has 12 divisors (see below), whose sum is σ = 239785312. Its totient is φ = 83002536.

The previous prime is 145254479. The next prime is 145254509. The reversal of 145254501 is 105452541.

It is not a de Polignac number, because 145254501 - 2⁵ = 145254469 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145254509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1152751 + ... + 1152876.

Almost surely, 2^145254501 is an apocalyptic number.

It is an amenable number.

145254501 is a deficient number, since it is larger than the sum of its proper divisors (94530811).

145254501 is a wasteful number, since it uses less digits than its factorization.

145254501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305640 (or 2305637 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 145254501 is about 12052.1575246924. The cubic root of 145254501 is about 525.6659738881.

The spelling of 145254501 in words is "one hundred forty-five million, two hundred fifty-four thousand, five hundred one".