154011253531 has 6 divisors (see below), whose sum is σ = 162543733332. Its totient is φ = 145905397740.

The previous prime is 154011253523. The next prime is 154011253541. The reversal of 154011253531 is 135352110451.

It is not a de Polignac number, because 154011253531 - 2³ = 154011253523 is a prime.

It is a super-2 number, since 2×154011253531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154011253493 and 154011253502.

It is not an unprimeable number, because it can be changed into a prime (154011253541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213311625 + ... + 213312346.

It is an arithmetic number, because the mean of its divisors is an integer number (27090622222).

Almost surely, 2^154011253531 is an apocalyptic number.

154011253531 is a deficient number, since it is larger than the sum of its proper divisors (8532479801).

154011253531 is an equidigital number, since it uses as much as digits as its factorization.

154011253531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426624009 (or 426623990 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 154011253531 its reverse (135352110451), we get a palindrome (289363363982).

The spelling of 154011253531 in words is "one hundred fifty-four billion, eleven million, two hundred fifty-three thousand, five hundred thirty-one".