1601954 has 4 divisors (see below), whose sum is σ = 2402934. Its totient is φ = 800976.

The previous prime is 1601953. The next prime is 1601969. The reversal of 1601954 is 4591061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1525225 + 76729 = 1235^2 + 277^2 .

It is a super-3 number, since 3×1601954³ = 12333075163252195992, which contains 333 as substring.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1601953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400487 + ... + 400490.

2^1601954 is an apocalyptic number.

1601954 is a deficient number, since it is larger than the sum of its proper divisors (800980).

1601954 is an equidigital number, since it uses as much as digits as its factorization.

1601954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800979.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1601954 is about 1265.6832147105. The cubic root of 1601954 is about 117.0083029148.

The spelling of 1601954 in words is "one million, six hundred one thousand, nine hundred fifty-four".