145403414 has 48 divisors (see below), whose sum is σ = 256745328. Its totient is φ = 61337088.

The previous prime is 145403413. The next prime is 145403441. The reversal of 145403414 is 414304541.

It is a happy number.

It is a super-2 number, since 2×145403414² = 42284305605710792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145403411) 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 23 ways as a sum of consecutive naturals, for example, 277757 + ... + 278279.

It is an arithmetic number, because the mean of its divisors is an integer number (5348861).

Almost surely, 2^145403414 is an apocalyptic number.

145403414 is a deficient number, since it is larger than the sum of its proper divisors (111341914).

145403414 is a wasteful number, since it uses less digits than its factorization.

145403414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 145403414 is about 12058.3337986639. Note that the first 3 decimals coincide. The cubic root of 145403414 is about 525.8455478125.

Adding to 145403414 its reverse (414304541), we get a palindrome (559707955).

The spelling of 145403414 in words is "one hundred forty-five million, four hundred three thousand, four hundred fourteen".