100861492 has 12 divisors (see below), whose sum is σ = 176728356. Its totient is φ = 50367680.

The previous prime is 100861489. The next prime is 100861511. The reversal of 100861492 is 294168001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61873956 + 38987536 = 7866^2 + 6244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12073 + ... + 18640.

It is an arithmetic number, because the mean of its divisors is an integer number (14727363).

Almost surely, 2^100861492 is an apocalyptic number.

It is an amenable number.

100861492 is a deficient number, since it is larger than the sum of its proper divisors (75866864).

100861492 is a wasteful number, since it uses less digits than its factorization.

100861492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31538 (or 31536 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 100861492 is about 10042.9822264106. The cubic root of 100861492 is about 465.4879711907.

It can be divided in two parts, 1008 and 61492, that added together give a square (62500 = 250²).

The spelling of 100861492 in words is "one hundred million, eight hundred sixty-one thousand, four hundred ninety-two".