70148723 has 4 divisors (see below), whose sum is σ = 70168920. Its totient is φ = 70128528.

The previous prime is 70148677. The next prime is 70148737. The reversal of 70148723 is 32784107.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70148723 - 2⁸ = 70148467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70148723.

It is not an unprimeable number, because it can be changed into a prime (70148773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3413 + ... + 12326.

It is an arithmetic number, because the mean of its divisors is an integer number (17542230).

Almost surely, 2^70148723 is an apocalyptic number.

70148723 is a deficient number, since it is larger than the sum of its proper divisors (20197).

70148723 is a wasteful number, since it uses less digits than its factorization.

70148723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20196.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 70148723 is about 8375.4834487330. The cubic root of 70148723 is about 412.4201949072.

The spelling of 70148723 in words is "seventy million, one hundred forty-eight thousand, seven hundred twenty-three".