145719299 has 8 divisors (see below), whose sum is σ = 159846960. Its totient is φ = 131738400.

The previous prime is 145719271. The next prime is 145719307. The reversal of 145719299 is 992917541.

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 145719299 - 2²⁰ = 144670723 is a prime.

It is a super-2 number, since 2×145719299² = 42468228202102802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145719239) 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, 34604 + ... + 38585.

It is an arithmetic number, because the mean of its divisors is an integer number (19980870).

Almost surely, 2^145719299 is an apocalyptic number.

145719299 is a deficient number, since it is larger than the sum of its proper divisors (14127661).

145719299 is a wasteful number, since it uses less digits than its factorization.

145719299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73381.

The product of its digits is 204120, while the sum is 47.

The square root of 145719299 is about 12071.4248951812. The cubic root of 145719299 is about 526.2260674849.

The spelling of 145719299 in words is "one hundred forty-five million, seven hundred nineteen thousand, two hundred ninety-nine".