145496247 has 16 divisors (see below), whose sum is σ = 214566240. Its totient is φ = 87115392.

The previous prime is 145496233. The next prime is 145496291. The reversal of 145496247 is 742694541.

It is not a de Polignac number, because 145496247 - 2⁷ = 145496119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145496199 and 145496208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145496147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48972 + ... + 51857.

It is an arithmetic number, because the mean of its divisors is an integer number (13410390).

Almost surely, 2^145496247 is an apocalyptic number.

145496247 is a deficient number, since it is larger than the sum of its proper divisors (69069993).

145496247 is a wasteful number, since it uses less digits than its factorization.

145496247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100882.

The product of its digits is 241920, while the sum is 42.

The square root of 145496247 is about 12062.1825139566. The cubic root of 145496247 is about 525.9574329310.

The spelling of 145496247 in words is "one hundred forty-five million, four hundred ninety-six thousand, two hundred forty-seven".