135415402 has 8 divisors (see below), whose sum is σ = 203177412. Its totient is φ = 67689600.

The previous prime is 135415393. The next prime is 135415429. The reversal of 135415402 is 204514531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 106481761 + 28933641 = 10319^2 + 5379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4152 + ... + 16972.

Almost surely, 2^135415402 is an apocalyptic number.

135415402 is a deficient number, since it is larger than the sum of its proper divisors (67762010).

135415402 is a wasteful number, since it uses less digits than its factorization.

135415402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18104.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 135415402 is about 11636.8123642173. The cubic root of 135415402 is about 513.5184137065.

Adding to 135415402 its reverse (204514531), we get a palindrome (339929933).

The spelling of 135415402 in words is "one hundred thirty-five million, four hundred fifteen thousand, four hundred two".