1401312049 has 4 divisors (see below), whose sum is σ = 1402408960. Its totient is φ = 1400215140.

The previous prime is 1401312047. The next prime is 1401312083. The reversal of 1401312049 is 9402131041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1401312049 - 2¹ = 1401312047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401312041) 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, 546537 + ... + 549094.

It is an arithmetic number, because the mean of its divisors is an integer number (350602240).

Almost surely, 2^1401312049 is an apocalyptic number.

It is an amenable number.

1401312049 is a deficient number, since it is larger than the sum of its proper divisors (1096911).

1401312049 is a wasteful number, since it uses less digits than its factorization.

1401312049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096910.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1401312049 is about 37434.1027540397. The cubic root of 1401312049 is about 1119.0383031348.

It can be divided in two parts, 14013 and 12049, that added together give a palindrome (26062).

The spelling of 1401312049 in words is "one billion, four hundred one million, three hundred twelve thousand, forty-nine".