145791259 has 4 divisors (see below), whose sum is σ = 145906704. Its totient is φ = 145675816.

The previous prime is 145791257. The next prime is 145791271. The reversal of 145791259 is 952197541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 952197541 = 9473 ⋅100517.

It is a cyclic number.

It is not a de Polignac number, because 145791259 - 2¹ = 145791257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145791257) 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, 55807 + ... + 58360.

It is an arithmetic number, because the mean of its divisors is an integer number (36476676).

Almost surely, 2^145791259 is an apocalyptic number.

145791259 is a deficient number, since it is larger than the sum of its proper divisors (115445).

145791259 is a wasteful number, since it uses less digits than its factorization.

145791259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115444.

The product of its digits is 113400, while the sum is 43.

The square root of 145791259 is about 12074.4051199221. The cubic root of 145791259 is about 526.3126746274.

The spelling of 145791259 in words is "one hundred forty-five million, seven hundred ninety-one thousand, two hundred fifty-nine".