2135015401 has 4 divisors (see below), whose sum is σ = 2135192832. Its totient is φ = 2134837972.

The previous prime is 2135015387. The next prime is 2135015423. The reversal of 2135015401 is 1045105312.

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 2135015401 - 2¹³ = 2135007209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2135015471) 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, 69241 + ... + 95206.

It is an arithmetic number, because the mean of its divisors is an integer number (533798208).

Almost surely, 2^2135015401 is an apocalyptic number.

It is an amenable number.

2135015401 is a deficient number, since it is larger than the sum of its proper divisors (177431).

2135015401 is a wasteful number, since it uses less digits than its factorization.

2135015401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177430.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2135015401 is about 46206.2268639195. The cubic root of 2135015401 is about 1287.6574277729.

The spelling of 2135015401 in words is "two billion, one hundred thirty-five million, fifteen thousand, four hundred one".