70143513 has 32 divisors (see below), whose sum is σ = 109226880. Its totient is φ = 39567360.

The previous prime is 70143511. The next prime is 70143523. The reversal of 70143513 is 31534107.

It is not a de Polignac number, because 70143513 - 2¹ = 70143511 is a prime.

It is a super-2 number, since 2×70143513² = 9840224831962338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70143511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53773 + ... + 55061.

It is an arithmetic number, because the mean of its divisors is an integer number (3413340).

Almost surely, 2^70143513 is an apocalyptic number.

It is an amenable number.

70143513 is a deficient number, since it is larger than the sum of its proper divisors (39083367).

70143513 is a wasteful number, since it uses less digits than its factorization.

70143513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 70143513 is about 8375.1724161357. The cubic root of 70143513 is about 412.4099843987.

The spelling of 70143513 in words is "seventy million, one hundred forty-three thousand, five hundred thirteen".