70853131 has 4 divisors (see below), whose sum is σ = 70878064. Its totient is φ = 70828200.

The previous prime is 70853117. The next prime is 70853137. The reversal of 70853131 is 13135807.

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 70853131 - 2⁵ = 70853099 is a prime.

It is a super-2 number, since 2×70853131² = 10040332345006322, 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 70853131.

It is not an unprimeable number, because it can be changed into a prime (70853137) 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, 7560 + ... + 14101.

It is an arithmetic number, because the mean of its divisors is an integer number (17719516).

Almost surely, 2^70853131 is an apocalyptic number.

70853131 is a deficient number, since it is larger than the sum of its proper divisors (24933).

70853131 is a wasteful number, since it uses less digits than its factorization.

70853131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24932.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 70853131 is about 8417.4301897907. The cubic root of 70853131 is about 413.7960577662.

Adding to 70853131 its reverse (13135807), we get a palindrome (83988938).

The spelling of 70853131 in words is "seventy million, eight hundred fifty-three thousand, one hundred thirty-one".