70140513 has 4 divisors (see below), whose sum is σ = 93520688. Its totient is φ = 46760340.

The previous prime is 70140479. The next prime is 70140523. The reversal of 70140513 is 31504107.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31504107 = 3 ⋅10501369.

It is not a de Polignac number, because 70140513 - 2¹⁷ = 70009441 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 70140513.

It is not an unprimeable number, because it can be changed into a prime (70140523) 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, 11690083 + ... + 11690088.

It is an arithmetic number, because the mean of its divisors is an integer number (23380172).

Almost surely, 2^70140513 is an apocalyptic number.

It is an amenable number.

70140513 is a deficient number, since it is larger than the sum of its proper divisors (23380175).

70140513 is a wasteful number, since it uses less digits than its factorization.

70140513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23380174.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 70140513 is about 8374.9933134302. The cubic root of 70140513 is about 412.4041047977.

It can be divided in two parts, 701 and 40513, that added together give a palindrome (41214).

The spelling of 70140513 in words is "seventy million, one hundred forty thousand, five hundred thirteen".