145124849 has 8 divisors (see below), whose sum is σ = 146733120. Its totient is φ = 143521456.

The previous prime is 145124843. The next prime is 145124851. The reversal of 145124849 is 948421541.

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

It is a cyclic number.

It is not a de Polignac number, because 145124849 - 2⁸ = 145124593 is a prime.

It is a super-2 number, since 2×145124849² = 42122443594545602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145124843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118052 + ... + 119274.

It is an arithmetic number, because the mean of its divisors is an integer number (18341640).

Almost surely, 2^145124849 is an apocalyptic number.

It is an amenable number.

145124849 is a deficient number, since it is larger than the sum of its proper divisors (1608271).

145124849 is a wasteful number, since it uses less digits than its factorization.

145124849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439.

The product of its digits is 46080, while the sum is 38.

The square root of 145124849 is about 12046.7775359222. Note that the first 3 decimals coincide. The cubic root of 145124849 is about 525.5095267968.

The spelling of 145124849 in words is "one hundred forty-five million, one hundred twenty-four thousand, eight hundred forty-nine".