145434155231 has 8 divisors (see below), whose sum is σ = 147067176528. Its totient is φ = 143804920000.

The previous prime is 145434155183. The next prime is 145434155257. The reversal of 145434155231 is 132551434541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145434155231 is a prime.

It is a super-2 number, since 2×145434155231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145434155281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869225 + ... + 1022946.

It is an arithmetic number, because the mean of its divisors is an integer number (18383397066).

Almost surely, 2^145434155231 is an apocalyptic number.

145434155231 is a deficient number, since it is larger than the sum of its proper divisors (1633021297).

145434155231 is a wasteful number, since it uses less digits than its factorization.

145434155231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893033.

The product of its digits is 144000, while the sum is 38.

Adding to 145434155231 its reverse (132551434541), we get a palindrome (277985589772).

The spelling of 145434155231 in words is "one hundred forty-five billion, four hundred thirty-four million, one hundred fifty-five thousand, two hundred thirty-one".