1401273051 has 16 divisors (see below), whose sum is σ = 1880665248. Its totient is φ = 928051200.

The previous prime is 1401273037. The next prime is 1401273053. The reversal of 1401273051 is 1503721041.

It is not a de Polignac number, because 1401273051 - 2¹⁰ = 1401272027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401273053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328291 + ... + 332531.

It is an arithmetic number, because the mean of its divisors is an integer number (117541578).

Almost surely, 2^1401273051 is an apocalyptic number.

1401273051 is a deficient number, since it is larger than the sum of its proper divisors (479392197).

1401273051 is a wasteful number, since it uses less digits than its factorization.

1401273051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4942.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1401273051 is about 37433.5818617455. The cubic root of 1401273051 is about 1119.0279222301.

Adding to 1401273051 its reverse (1503721041), we get a palindrome (2904994092).

The spelling of 1401273051 in words is "one billion, four hundred one million, two hundred seventy-three thousand, fifty-one".