145974293 has 8 divisors (see below), whose sum is σ = 149569728. Its totient is φ = 142388064.

The previous prime is 145974277. The next prime is 145974331. The reversal of 145974293 is 392479541.

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 145974293 - 2⁴ = 145974277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145974203) 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, 38480 + ... + 42102.

It is an arithmetic number, because the mean of its divisors is an integer number (18696216).

Almost surely, 2^145974293 is an apocalyptic number.

It is an amenable number.

145974293 is a deficient number, since it is larger than the sum of its proper divisors (3595435).

145974293 is an equidigital number, since it uses as much as digits as its factorization.

145974293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4603.

The product of its digits is 272160, while the sum is 44.

The square root of 145974293 is about 12081.9821635359. The cubic root of 145974293 is about 526.5328360393.

The spelling of 145974293 in words is "one hundred forty-five million, nine hundred seventy-four thousand, two hundred ninety-three".