1390071 has 8 divisors (see below), whose sum is σ = 1913344. Its totient is φ = 896760.

The previous prime is 1390069. The next prime is 1390087. The reversal of 1390071 is 1700931.

1390071 = T₁₈₀ + T₁₈₁ + ... + T₂₄₁.

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

It is not a de Polignac number, because 1390071 - 2¹ = 1390069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390471) 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, 7381 + ... + 7566.

It is an arithmetic number, because the mean of its divisors is an integer number (239168).

2^1390071 is an apocalyptic number.

1390071 is a deficient number, since it is larger than the sum of its proper divisors (523273).

1390071 is a wasteful number, since it uses less digits than its factorization.

1390071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14981.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 1390071 is about 1179.0127225777. The cubic root of 1390071 is about 111.6038031360.

The spelling of 1390071 in words is "one million, three hundred ninety thousand, seventy-one".