1401661185 has 8 divisors (see below), whose sum is σ = 2242657920. Its totient is φ = 747552624.

The previous prime is 1401661109. The next prime is 1401661189. The reversal of 1401661185 is 5811661041.

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

It is not a de Polignac number, because 1401661185 - 2⁸ = 1401660929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401661189) 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, 46722025 + ... + 46722054.

It is an arithmetic number, because the mean of its divisors is an integer number (280332240).

Almost surely, 2^1401661185 is an apocalyptic number.

1401661185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1401661185 is a deficient number, since it is larger than the sum of its proper divisors (840996735).

1401661185 is an equidigital number, since it uses as much as digits as its factorization.

1401661185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93444087.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 1401661185 is about 37438.7658049781. The cubic root of 1401661185 is about 1119.1312313099.

The spelling of 1401661185 in words is "one billion, four hundred one million, six hundred sixty-one thousand, one hundred eighty-five".