135802457 has 4 divisors (see below), whose sum is σ = 155202816. Its totient is φ = 116402100.

The previous prime is 135802453. The next prime is 135802487. The reversal of 135802457 is 754208531.

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 135802457 - 2² = 135802453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135802453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9700169 + ... + 9700182.

It is an arithmetic number, because the mean of its divisors is an integer number (38800704).

Almost surely, 2^135802457 is an apocalyptic number.

It is an amenable number.

135802457 is a deficient number, since it is larger than the sum of its proper divisors (19400359).

135802457 is an equidigital number, since it uses as much as digits as its factorization.

135802457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19400358.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 135802457 is about 11653.4311256385. The cubic root of 135802457 is about 514.0072079313.

The spelling of 135802457 in words is "one hundred thirty-five million, eight hundred two thousand, four hundred fifty-seven".