145403269 has 8 divisors (see below), whose sum is σ = 159040512. Its totient is φ = 131835840.

The previous prime is 145403239. The next prime is 145403281. The reversal of 145403269 is 962304541.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145403269 is a prime.

It is a super-2 number, since 2×145403269² = 42284221271772722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145403239) 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, 13044 + ... + 21469.

It is an arithmetic number, because the mean of its divisors is an integer number (19880064).

Almost surely, 2^145403269 is an apocalyptic number.

It is an amenable number.

145403269 is a deficient number, since it is larger than the sum of its proper divisors (13637243).

145403269 is a wasteful number, since it uses less digits than its factorization.

145403269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34907.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 145403269 is about 12058.3277862231. The cubic root of 145403269 is about 525.8453730169.

The spelling of 145403269 in words is "one hundred forty-five million, four hundred three thousand, two hundred sixty-nine".