1401265415 has 16 divisors (see below), whose sum is σ = 1852553376. Its totient is φ = 1009008000.

The previous prime is 1401265387. The next prime is 1401265417. The reversal of 1401265415 is 5145621041.

It is not a de Polignac number, because 1401265415 - 2⁶ = 1401265351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401265417) 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, 120572 + ... + 131681.

It is an arithmetic number, because the mean of its divisors is an integer number (115784586).

Almost surely, 2^1401265415 is an apocalyptic number.

1401265415 is a deficient number, since it is larger than the sum of its proper divisors (451287961).

1401265415 is a wasteful number, since it uses less digits than its factorization.

1401265415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252370.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1401265415 is about 37433.4798676265. The cubic root of 1401265415 is about 1119.0258895754.

Adding to 1401265415 its reverse (5145621041), we get a palindrome (6546886456).

It can be divided in two parts, 140126 and 5415, that added together give a palindrome (145541).

The spelling of 1401265415 in words is "one billion, four hundred one million, two hundred sixty-five thousand, four hundred fifteen".