154253323430531 has 32 divisors (see below), whose sum is σ = 169401410240832. Its totient is φ = 139578916239360.

The previous prime is 154253323430483. The next prime is 154253323430539. The reversal of 154253323430531 is 135034323352451.

It is not a de Polignac number, because 154253323430531 - 2¹⁴ = 154253323414147 is a prime.

It is a super-2 number, since 2×154253323430531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154253323430539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3821820791 + ... + 3821861151.

It is an arithmetic number, because the mean of its divisors is an integer number (5293794070026).

Almost surely, 2^{154253323430531} is an apocalyptic number.

154253323430531 is a deficient number, since it is larger than the sum of its proper divisors (15148086810301).

154253323430531 is a wasteful number, since it uses less digits than its factorization.

154253323430531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45143.

The product of its (nonzero) digits is 1944000, while the sum is 44.

Adding to 154253323430531 its reverse (135034323352451), we get a palindrome (289287646782982).

The spelling of 154253323430531 in words is "one hundred fifty-four trillion, two hundred fifty-three billion, three hundred twenty-three million, four hundred thirty thousand, five hundred thirty-one".