78152235 has 32 divisors (see below), whose sum is σ = 144529920. Its totient is φ = 35321088.

The previous prime is 78152201. The next prime is 78152257. The reversal of 78152235 is 53225187.

It is not a de Polignac number, because 78152235 - 2¹⁰ = 78151211 is a prime.

It is a super-2 number, since 2×78152235² = 12215543670990450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78152196 and 78152205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5164 + ... + 13526.

It is an arithmetic number, because the mean of its divisors is an integer number (4516560).

Almost surely, 2^78152235 is an apocalyptic number.

78152235 is a deficient number, since it is larger than the sum of its proper divisors (66377685).

78152235 is a wasteful number, since it uses less digits than its factorization.

78152235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467.

The product of its digits is 16800, while the sum is 33.

The square root of 78152235 is about 8840.3752748399. The cubic root of 78152235 is about 427.5436568391.

It can be divided in two parts, 78152 and 235, that added together give a palindrome (78387).

The spelling of 78152235 in words is "seventy-eight million, one hundred fifty-two thousand, two hundred thirty-five".