70220149 has 8 divisors (see below), whose sum is σ = 75088728. Its totient is φ = 65433600.

The previous prime is 70220131. The next prime is 70220179. The reversal of 70220149 is 94102207.

It can be written as a sum of positive squares in 4 ways, for example, as 52664049 + 17556100 = 7257^2 + 4190^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70220149 - 2⁹ = 70219637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70220179) 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, 18732 + ... + 22165.

It is an arithmetic number, because the mean of its divisors is an integer number (9386091).

Almost surely, 2^70220149 is an apocalyptic number.

It is an amenable number.

70220149 is a deficient number, since it is larger than the sum of its proper divisors (4868579).

70220149 is a wasteful number, since it uses less digits than its factorization.

70220149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41015.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 70220149 is about 8379.7463565433. The cubic root of 70220149 is about 412.5601239574.

The spelling of 70220149 in words is "seventy million, two hundred twenty thousand, one hundred forty-nine".