70230491 has 4 divisors (see below), whose sum is σ = 70407792. Its totient is φ = 70053192.

The previous prime is 70230487. The next prime is 70230493. The reversal of 70230491 is 19403207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19403207 = 37 ⋅524411.

It is a cyclic number.

It is not a de Polignac number, because 70230491 - 2² = 70230487 is a prime.

It is a super-2 number, since 2×70230491² = 9864643732202162, which contains 22 as substring.

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 70230491.

It is not an unprimeable number, because it can be changed into a prime (70230493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88055 + ... + 88848.

It is an arithmetic number, because the mean of its divisors is an integer number (17601948).

Almost surely, 2^70230491 is an apocalyptic number.

70230491 is a deficient number, since it is larger than the sum of its proper divisors (177301).

70230491 is a wasteful number, since it uses less digits than its factorization.

70230491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177300.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 70230491 is about 8380.3634169408. The cubic root of 70230491 is about 412.5803768687.

Adding to 70230491 its reverse (19403207), we get a palindrome (89633698).

The spelling of 70230491 in words is "seventy million, two hundred thirty thousand, four hundred ninety-one".