145530331131 has 8 divisors (see below), whose sum is σ = 194590132560. Its totient is φ = 96745375232.

The previous prime is 145530331127. The next prime is 145530331159. The reversal of 145530331131 is 131133035541.

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

It is a cyclic number.

It is not a de Polignac number, because 145530331131 - 2² = 145530331127 is a prime.

It is a super-2 number, since 2×145530331131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145530339131) 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, 68710146 + ... + 68712263.

It is an arithmetic number, because the mean of its divisors is an integer number (24323766570).

Almost surely, 2^145530331131 is an apocalyptic number.

145530331131 is a deficient number, since it is larger than the sum of its proper divisors (49059801429).

145530331131 is a wasteful number, since it uses less digits than its factorization.

145530331131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137422765.

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 145530331131 its reverse (131133035541), we get a palindrome (276663366672).

The spelling of 145530331131 in words is "one hundred forty-five billion, five hundred thirty million, three hundred thirty-one thousand, one hundred thirty-one".