1970156 has 12 divisors (see below), whose sum is σ = 3462480. Its totient is φ = 980880.

The previous prime is 1970149. The next prime is 1970161. The reversal of 1970156 is 6510791.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161 + ... + 1991.

It is an arithmetic number, because the mean of its divisors is an integer number (288540).

2^1970156 is an apocalyptic number.

It is an amenable number.

1970156 is a deficient number, since it is larger than the sum of its proper divisors (1492324).

1970156 is a wasteful number, since it uses less digits than its factorization.

1970156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104 (or 2102 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 1970156 is about 1403.6224563607. The cubic root of 1970156 is about 125.3622770285.

The spelling of 1970156 in words is "one million, nine hundred seventy thousand, one hundred fifty-six".