145625899 has 8 divisors (see below), whose sum is σ = 155450880. Its totient is φ = 136017000.

The previous prime is 145625897. The next prime is 145625911. The reversal of 145625899 is 998526541.

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 145625899 - 2¹ = 145625897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145625897) 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, 52627 + ... + 55324.

It is an arithmetic number, because the mean of its divisors is an integer number (19431360).

Almost surely, 2^145625899 is an apocalyptic number.

145625899 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

145625899 is a deficient number, since it is larger than the sum of its proper divisors (9824981).

145625899 is a wasteful number, since it uses less digits than its factorization.

145625899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108041.

The product of its digits is 777600, while the sum is 49.

The square root of 145625899 is about 12067.5556348417. Note that the first 3 decimals coincide. The cubic root of 145625899 is about 526.1136137932.

The spelling of 145625899 in words is "one hundred forty-five million, six hundred twenty-five thousand, eight hundred ninety-nine".