70151081 has 48 divisors (see below), whose sum is σ = 99386112. Its totient is φ = 48090240.

The previous prime is 70151071. The next prime is 70151089. The reversal of 70151081 is 18015107.

It is not a de Polignac number, because 70151081 - 2¹⁴ = 70134697 is a prime.

It is a super-2 number, since 2×70151081² = 9842348330937122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (70151089) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253115 + ... + 253391.

It is an arithmetic number, because the mean of its divisors is an integer number (2070544).

Almost surely, 2^70151081 is an apocalyptic number.

It is an amenable number.

70151081 is a deficient number, since it is larger than the sum of its proper divisors (29235031).

70151081 is a wasteful number, since it uses less digits than its factorization.

70151081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 70151081 is about 8375.6242155436. The cubic root of 70151081 is about 412.4248159271.

Adding to 70151081 its reverse (18015107), we get a palindrome (88166188).

It can be divided in two parts, 70 and 151081, that added together give a palindrome (151151).

The spelling of 70151081 in words is "seventy million, one hundred fifty-one thousand, eighty-one".