1293139 has 16 divisors (see below), whose sum is σ = 1473120. Its totient is φ = 1128960.

The previous prime is 1293137. The next prime is 1293157. The reversal of 1293139 is 9313921.

1293139 = T₁₅ + T₁₆ + ... + T₁₉₇.

1293139 = 197² + 198² + ... + 225².

It is a cyclic number.

It is not a de Polignac number, because 1293139 - 2¹ = 1293137 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 (1293133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21169 + ... + 21229.

It is an arithmetic number, because the mean of its divisors is an integer number (92070).

2^1293139 is an apocalyptic number.

1293139 is a deficient number, since it is larger than the sum of its proper divisors (179981).

1293139 is a wasteful number, since it uses less digits than its factorization.

With its successor (1293140) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (150).

1293139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150.

The product of its digits is 1458, while the sum is 28.

The square root of 1293139 is about 1137.1626972426. The cubic root of 1293139 is about 108.9469483437.

The spelling of 1293139 in words is "one million, two hundred ninety-three thousand, one hundred thirty-nine".