654101231 has 32 divisors (see below), whose sum is σ = 809948160. Its totient is φ = 515520000.

The previous prime is 654101221. The next prime is 654101257. The reversal of 654101231 is 132101456.

It is a cyclic number.

It is not a de Polignac number, because 654101231 - 2¹⁰ = 654100207 is a prime.

It is a super-2 number, since 2×654101231² = 855696840791430722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 654101197 and 654101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654101221) 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, 1821830 + ... + 1822188.

It is an arithmetic number, because the mean of its divisors is an integer number (25310880).

Almost surely, 2^654101231 is an apocalyptic number.

654101231 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

654101231 is a deficient number, since it is larger than the sum of its proper divisors (155846929).

654101231 is a wasteful number, since it uses less digits than its factorization.

654101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 654101231 is about 25575.4028511771. The cubic root of 654101231 is about 868.0571570558.

Adding to 654101231 its reverse (132101456), we get a palindrome (786202687).

The spelling of 654101231 in words is "six hundred fifty-four million, one hundred one thousand, two hundred thirty-one".