145412549 has 8 divisors (see below), whose sum is σ = 148869792. Its totient is φ = 141981840.

The previous prime is 145412539. The next prime is 145412557. The reversal of 145412549 is 945214541.

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 145412549 - 2¹² = 145408453 is a prime.

It is a super-2 number, since 2×145412549² = 42289618813354802, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145412539) 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 7 ways as a sum of consecutive naturals, for example, 4682 + ... + 17684.

It is an arithmetic number, because the mean of its divisors is an integer number (18608724).

Almost surely, 2^145412549 is an apocalyptic number.

It is an amenable number.

145412549 is a deficient number, since it is larger than the sum of its proper divisors (3457243).

145412549 is a wasteful number, since it uses less digits than its factorization.

145412549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13267.

The product of its digits is 28800, while the sum is 35.

The square root of 145412549 is about 12058.7125763906. The cubic root of 145412549 is about 525.8565597009.

The spelling of 145412549 in words is "one hundred forty-five million, four hundred twelve thousand, five hundred forty-nine".