145139334 has 32 divisors (see below), whose sum is σ = 305316864. Its totient is φ = 45932640.

The previous prime is 145139333. The next prime is 145139341. The reversal of 145139334 is 433931541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145139295 and 145139304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145139333) 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, 2497 + ... + 17219.

It is an arithmetic number, because the mean of its divisors is an integer number (9541152).

Almost surely, 2^145139334 is an apocalyptic number.

145139334 is an abundant number, since it is smaller than the sum of its proper divisors (160177530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145139334 is a wasteful number, since it uses less digits than its factorization.

145139334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14812.

The product of its digits is 19440, while the sum is 33.

The square root of 145139334 is about 12047.3787190409. The cubic root of 145139334 is about 525.5270100243.

The spelling of 145139334 in words is "one hundred forty-five million, one hundred thirty-nine thousand, three hundred thirty-four".