1401113529 has 6 divisors (see below), whose sum is σ = 2023830666. Its totient is φ = 934075680.

The previous prime is 1401113501. The next prime is 1401113537. The reversal of 1401113529 is 9253111041.

It is a happy number.

1401113529 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 970634025 + 430479504 = 31155^2 + 20748^2 .

It is not a de Polignac number, because 1401113529 - 2¹⁵ = 1401080761 is a prime.

It is a super-2 number, since 2×1401113529² = 3926238242293667682, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1401113629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77839632 + ... + 77839649.

It is an arithmetic number, because the mean of its divisors is an integer number (337305111).

Almost surely, 2^1401113529 is an apocalyptic number.

It is an amenable number.

1401113529 is a deficient number, since it is larger than the sum of its proper divisors (622717137).

1401113529 is a wasteful number, since it uses less digits than its factorization.

1401113529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155679287 (or 155679284 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1401113529 is about 37431.4510672509. The cubic root of 1401113529 is about 1118.9854569527.

The spelling of 1401113529 in words is "one billion, four hundred one million, one hundred thirteen thousand, five hundred twenty-nine".