145231934 has 8 divisors (see below), whose sum is σ = 229313640. Its totient is φ = 68794056.

The previous prime is 145231907. The next prime is 145231937. The reversal of 145231934 is 439132541.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145231934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145231937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1910909 + ... + 1910984.

It is an arithmetic number, because the mean of its divisors is an integer number (28664205).

Almost surely, 2^145231934 is an apocalyptic number.

145231934 is a deficient number, since it is larger than the sum of its proper divisors (84081706).

145231934 is a wasteful number, since it uses less digits than its factorization.

145231934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821914.

The product of its digits is 12960, while the sum is 32.

The square root of 145231934 is about 12051.2212659133. The cubic root of 145231934 is about 525.6387496751.

The spelling of 145231934 in words is "one hundred forty-five million, two hundred thirty-one thousand, nine hundred thirty-four".