940123801 has 8 divisors (see below), whose sum is σ = 949473800. Its totient is φ = 930787200.

The previous prime is 940123739. The next prime is 940123813. The reversal of 940123801 is 108321049.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 640000 + 939483801 = 800^2 + 30651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 3-Lehmer number, since φ(940123801) divides (940123801-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 940123801 - 2²³ = 931735193 is a prime.

It is a super-2 number, since 2×940123801² = 1767665522413375202, which contains 22 as substring.

It is a deceptive number, since it divides R_940123800.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 940123801.

It is not an unprimeable number, because it can be changed into a prime (940123871) 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, 193915 + ... + 198703.

It is an arithmetic number, because the mean of its divisors is an integer number (118684225).

It is a Poulet number, since it divides 2^940123800-1.

Almost surely, 2^940123801 is an apocalyptic number.

It is an amenable number.

940123801 is a deficient number, since it is larger than the sum of its proper divisors (9349999).

940123801 is a wasteful number, since it uses less digits than its factorization.

940123801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6699.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 940123801 is about 30661.4383387342. The cubic root of 940123801 is about 979.6291117000.

The spelling of 940123801 in words is "nine hundred forty million, one hundred twenty-three thousand, eight hundred one".