70142146 has 16 divisors (see below), whose sum is σ = 106774200. Its totient is φ = 34553728.

The previous prime is 70142113. The next prime is 70142147. The reversal of 70142146 is 64124107.

It can be written as a sum of positive squares in 4 ways, for example, as 16281225 + 53860921 = 4035^2 + 7339^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70142146.

It is not an unprimeable number, because it can be changed into a prime (70142147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68736 + ... + 69748.

Almost surely, 2^70142146 is an apocalyptic number.

70142146 is a deficient number, since it is larger than the sum of its proper divisors (36632054).

70142146 is a wasteful number, since it uses less digits than its factorization.

70142146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 70142146 is about 8375.0908054779. The cubic root of 70142146 is about 412.4073052813.

The spelling of 70142146 in words is "seventy million, one hundred forty-two thousand, one hundred forty-six".