1970155 has 16 divisors (see below), whose sum is σ = 2610144. Its totient is φ = 1415680.

The previous prime is 1970149. The next prime is 1970161. The reversal of 1970155 is 5510791.

It is an interprime number because it is at equal distance from previous prime (1970149) and next prime (1970161).

It is not a de Polignac number, because 1970155 - 2⁵ = 1970123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6057 + ... + 6373.

It is an arithmetic number, because the mean of its divisors is an integer number (163134).

2^1970155 is an apocalyptic number.

1970155 is a deficient number, since it is larger than the sum of its proper divisors (639989).

1970155 is a wasteful number, since it uses less digits than its factorization.

1970155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 1970155 is about 1403.6221001395. The cubic root of 1970155 is about 125.3622558183.

The spelling of 1970155 in words is "one million, nine hundred seventy thousand, one hundred fifty-five".