145355404 has 24 divisors (see below), whose sum is σ = 263180288. Its totient is φ = 70171920.

The previous prime is 145355401. The next prime is 145355407. The reversal of 145355404 is 404553541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145355401) and next prime (145355407).

It is a super-2 number, since 2×145355404² = 42256386944006432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (145355401) 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, 66757 + ... + 68899.

Almost surely, 2^145355404 is an apocalyptic number.

It is an amenable number.

145355404 is a deficient number, since it is larger than the sum of its proper divisors (117824884).

145355404 is a wasteful number, since it uses less digits than its factorization.

145355404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 145355404 is about 12056.3428949246. The cubic root of 145355404 is about 525.7876660357.

The spelling of 145355404 in words is "one hundred forty-five million, three hundred fifty-five thousand, four hundred four".