145669433 has 16 divisors (see below), whose sum is σ = 183662976. Its totient is φ = 112440960.

The previous prime is 145669429. The next prime is 145669441. The reversal of 145669433 is 334966541.

It is a cyclic number.

It is not a de Polignac number, because 145669433 - 2² = 145669429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (145669033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15791 + ... + 23252.

It is an arithmetic number, because the mean of its divisors is an integer number (11478936).

Almost surely, 2^145669433 is an apocalyptic number.

145669433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145669433 is a deficient number, since it is larger than the sum of its proper divisors (37993543).

145669433 is a wasteful number, since it uses less digits than its factorization.

145669433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39104.

The product of its digits is 233280, while the sum is 41.

The square root of 145669433 is about 12069.3592621978. The cubic root of 145669433 is about 526.1660347529.

The spelling of 145669433 in words is "one hundred forty-five million, six hundred sixty-nine thousand, four hundred thirty-three".