154002225531 has 64 divisors (see below), whose sum is σ = 271296746496. Its totient is φ = 75230208000.

The previous prime is 154002225521. The next prime is 154002225539. The reversal of 154002225531 is 135522200451.

It is not a de Polignac number, because 154002225531 - 2²³ = 153993836923 is a prime.

It is a super-2 number, since 2×154002225531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (154002225539) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4700001 + ... + 4732653.

It is an arithmetic number, because the mean of its divisors is an integer number (4239011664).

Almost surely, 2^154002225531 is an apocalyptic number.

154002225531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

154002225531 is a deficient number, since it is larger than the sum of its proper divisors (117294520965).

154002225531 is a wasteful number, since it uses less digits than its factorization.

154002225531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33892.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 154002225531 its reverse (135522200451), we get a palindrome (289524425982).

The spelling of 154002225531 in words is "one hundred fifty-four billion, two million, two hundred twenty-five thousand, five hundred thirty-one".