1390149 has 8 divisors (see below), whose sum is σ = 2059520. Its totient is φ = 926748.

The previous prime is 1390121. The next prime is 1390157. The reversal of 1390149 is 9410931.

It is not a de Polignac number, because 1390149 - 2⁵ = 1390117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 51487 = 1390149 / (1 + 3 + 9 + 0 + 1 + 4 + 9).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390159) 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, 25717 + ... + 25770.

It is an arithmetic number, because the mean of its divisors is an integer number (257440).

2^1390149 is an apocalyptic number.

It is an amenable number.

1390149 is a deficient number, since it is larger than the sum of its proper divisors (669371).

1390149 is an equidigital number, since it uses as much as digits as its factorization.

1390149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51496 (or 51490 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1390149 is about 1179.0458006371. The cubic root of 1390149 is about 111.6058905435.

The spelling of 1390149 in words is "one million, three hundred ninety thousand, one hundred forty-nine".