1961259 has 8 divisors (see below), whose sum is σ = 2685840. Its totient is φ = 1272096.

The previous prime is 1961257. The next prime is 1961321. The reversal of 1961259 is 9521691.

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

It is not a de Polignac number, because 1961259 - 2¹ = 1961257 is a prime.

1961259 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1961251) 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, 8724 + ... + 8945.

It is an arithmetic number, because the mean of its divisors is an integer number (335730).

2^1961259 is an apocalyptic number.

1961259 is a deficient number, since it is larger than the sum of its proper divisors (724581).

1961259 is a wasteful number, since it uses less digits than its factorization.

1961259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17709.

The product of its digits is 4860, while the sum is 33.

The square root of 1961259 is about 1400.4495706736. The cubic root of 1961259 is about 125.1732850008.

The spelling of 1961259 in words is "one million, nine hundred sixty-one thousand, two hundred fifty-nine".