1299142201 has 8 divisors (see below), whose sum is σ = 1512748224. Its totient is φ = 1092539760.

The previous prime is 1299142183. The next prime is 1299142213. The reversal of 1299142201 is 1022419921.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1299142201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1299142291) 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, 1750495 + ... + 1751236.

It is an arithmetic number, because the mean of its divisors is an integer number (189093528).

Almost surely, 2^1299142201 is an apocalyptic number.

It is an amenable number.

1299142201 is a deficient number, since it is larger than the sum of its proper divisors (213606023).

1299142201 is an equidigital number, since it uses as much as digits as its factorization.

1299142201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501791.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1299142201 is about 36043.6152598487. The cubic root of 1299142201 is about 1091.1527800575.

The spelling of 1299142201 in words is "one billion, two hundred ninety-nine million, one hundred forty-two thousand, two hundred one".