145231414 has 8 divisors (see below), whose sum is σ = 217905768. Its totient is φ = 72596160.

The previous prime is 145231409. The next prime is 145231433. The reversal of 145231414 is 414132541.

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

It is a super-2 number, since 2×145231414² = 42184327224878792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2694 + ... + 17254.

It is an arithmetic number, because the mean of its divisors is an integer number (27238221).

Almost surely, 2^145231414 is an apocalyptic number.

145231414 is a deficient number, since it is larger than the sum of its proper divisors (72674354).

145231414 is a wasteful number, since it uses less digits than its factorization.

145231414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19550.

The product of its digits is 1920, while the sum is 25.

The square root of 145231414 is about 12051.1996913170. The cubic root of 145231414 is about 525.6381223280.

Adding to 145231414 its reverse (414132541), we get a palindrome (559363955).

The spelling of 145231414 in words is "one hundred forty-five million, two hundred thirty-one thousand, four hundred fourteen".