135402015 has 64 divisors (see below), whose sum is σ = 261273600. Its totient is φ = 58566144.

The previous prime is 135401983. The next prime is 135402053. The reversal of 135402015 is 510204531.

It is not a de Polignac number, because 135402015 - 2⁵ = 135401983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 135401982 and 135402000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 160966 + ... + 161804.

It is an arithmetic number, because the mean of its divisors is an integer number (4082400).

Almost surely, 2^135402015 is an apocalyptic number.

135402015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135402015 is a deficient number, since it is larger than the sum of its proper divisors (125871585).

135402015 is a wasteful number, since it uses less digits than its factorization.

135402015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 135402015 is about 11636.2371495256. The cubic root of 135402015 is about 513.5014912160.

Adding to 135402015 its reverse (510204531), we get a palindrome (645606546).

The spelling of 135402015 in words is "one hundred thirty-five million, four hundred two thousand, fifteen".