145381469 has 8 divisors (see below), whose sum is σ = 146808288. Its totient is φ = 143962000.

The previous prime is 145381451. The next prime is 145381477. The reversal of 145381469 is 964183541.

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 145381469 - 2⁸ = 145381213 is a prime.

It is a super-2 number, since 2×145381469² = 42271543057195922, 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 (145381169) 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, 43094 + ... + 46344.

It is an arithmetic number, because the mean of its divisors is an integer number (18351036).

Almost surely, 2^145381469 is an apocalyptic number.

It is an amenable number.

145381469 is a deficient number, since it is larger than the sum of its proper divisors (1426819).

145381469 is a wasteful number, since it uses less digits than its factorization.

145381469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675.

The product of its digits is 103680, while the sum is 41.

The square root of 145381469 is about 12057.4238127388. The cubic root of 145381469 is about 525.8190920808.

The spelling of 145381469 in words is "one hundred forty-five million, three hundred eighty-one thousand, four hundred sixty-nine".