145412986 has 8 divisors (see below), whose sum is σ = 218217600. Its totient is φ = 72673788.

The previous prime is 145412983. The next prime is 145412999. The reversal of 145412986 is 689214541.

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

It is a super-2 number, since 2×145412986² = 42289872994872392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145412983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10356 + ... + 19951.

It is an arithmetic number, because the mean of its divisors is an integer number (27277200).

Almost surely, 2^145412986 is an apocalyptic number.

145412986 is a deficient number, since it is larger than the sum of its proper divisors (72804614).

145412986 is a wasteful number, since it uses less digits than its factorization.

145412986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32708.

The product of its digits is 69120, while the sum is 40.

The square root of 145412986 is about 12058.7306960559. The cubic root of 145412986 is about 525.8570864759.

The spelling of 145412986 in words is "one hundred forty-five million, four hundred twelve thousand, nine hundred eighty-six".