1407161999 has 4 divisors (see below), whose sum is σ = 1437101664. Its totient is φ = 1377222336.

The previous prime is 1407161963. The next prime is 1407162017. The reversal of 1407161999 is 9991617041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1407161999 - 2¹² = 1407157903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 29939617 = 1407161999 / (1 + 4 + 0 + 7 + 1 + 6 + 1 + 9 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1407161909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14969762 + ... + 14969855.

It is an arithmetic number, because the mean of its divisors is an integer number (359275416).

Almost surely, 2^1407161999 is an apocalyptic number.

1407161999 is a deficient number, since it is larger than the sum of its proper divisors (29939665).

1407161999 is an equidigital number, since it uses as much as digits as its factorization.

1407161999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29939664.

The product of its (nonzero) digits is 122472, while the sum is 47.

The square root of 1407161999 is about 37512.1580157687. The cubic root of 1407161999 is about 1120.5933290654.

The spelling of 1407161999 in words is "one billion, four hundred seven million, one hundred sixty-one thousand, nine hundred ninety-nine".