145291294 has 8 divisors (see below), whose sum is σ = 219380688. Its totient is φ = 72164400.

The previous prime is 145291261. The next prime is 145291301. The reversal of 145291294 is 492192541.

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

It is a super-2 number, since 2×145291294² = 42219120224388872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 240247 + ... + 240850.

It is an arithmetic number, because the mean of its divisors is an integer number (27422586).

Almost surely, 2^145291294 is an apocalyptic number.

145291294 is a deficient number, since it is larger than the sum of its proper divisors (74089394).

145291294 is a wasteful number, since it uses less digits than its factorization.

145291294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481250.

The product of its digits is 25920, while the sum is 37.

The square root of 145291294 is about 12053.6838352431. The cubic root of 145291294 is about 525.7103539136.

The spelling of 145291294 in words is "one hundred forty-five million, two hundred ninety-one thousand, two hundred ninety-four".