145562019 has 8 divisors (see below), whose sum is σ = 200343552. Its totient is φ = 93910920.

The previous prime is 145561993. The next prime is 145562029. The reversal of 145562019 is 910265541.

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

It is not a de Polignac number, because 145562019 - 2⁵ = 145561987 is a prime.

It is a super-2 number, since 2×145562019² = 42376602750712722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145562029) 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, 782499 + ... + 782684.

It is an arithmetic number, because the mean of its divisors is an integer number (25042944).

Almost surely, 2^145562019 is an apocalyptic number.

145562019 is a deficient number, since it is larger than the sum of its proper divisors (54781533).

145562019 is a wasteful number, since it uses less digits than its factorization.

145562019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565217.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 145562019 is about 12064.9085781866. The cubic root of 145562019 is about 526.0366745188.

The spelling of 145562019 in words is "one hundred forty-five million, five hundred sixty-two thousand, nineteen".