1461066156 has 72 divisors (see below), whose sum is σ = 4266020304. Its totient is φ = 416701440.

The previous prime is 1461066121. The next prime is 1461066221. The reversal of 1461066156 is 6516601641.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1461066156.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101785 + ... + 115248.

It is an arithmetic number, because the mean of its divisors is an integer number (59250282).

Almost surely, 2^1461066156 is an apocalyptic number.

It is an amenable number.

1461066156 is an abundant number, since it is smaller than the sum of its proper divisors (2804954148).

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

1461066156 is a wasteful number, since it uses less digits than its factorization.

1461066156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217071 (or 217066 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1461066156 is about 38223.8950919448. The cubic root of 1461066156 is about 1134.7232678722.

Adding to 1461066156 its reverse (6516601641), we get a palindrome (7977667797).

The spelling of 1461066156 in words is "one billion, four hundred sixty-one million, sixty-six thousand, one hundred fifty-six".