654161240 has 32 divisors (see below), whose sum is σ = 1486162080. Its totient is φ = 259122432.

The previous prime is 654161237. The next prime is 654161243. The reversal of 654161240 is 42161456.

It is an interprime number because it is at equal distance from previous prime (654161237) and next prime (654161243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654161243) 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, 75269 + ... + 83508.

It is an arithmetic number, because the mean of its divisors is an integer number (46442565).

Almost surely, 2^654161240 is an apocalyptic number.

It is an amenable number.

654161240 is an abundant number, since it is smaller than the sum of its proper divisors (832000840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654161240 is a wasteful number, since it uses less digits than its factorization.

654161240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158891 (or 158887 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 654161240 is about 25576.5760022721. The cubic root of 654161240 is about 868.0837022074.

The spelling of 654161240 in words is "six hundred fifty-four million, one hundred sixty-one thousand, two hundred forty".